Global mobile advertising impressions on InMobi's network grew 11% from January to April 2011. Smartphone growth contributed significantly with impressions increasing by over 2 billion. Mobile apps also grew rapidly with a 32% increase. The top manufacturers were Nokia, Apple, and Samsung, though Android platforms grew the most. The Apple iPhone and iPod remained the top devices globally.

1. A GLOBAL VIEW OF MOBILE ADVERTISING:
Global Summary April 2011
InMobi Mobile Insights - Network Data
Release date: May 16, 2011

2. ABOUT THE RESEARCH
Project Background
After launching in 2007 in Asia, InMobi quickly grew to become the world's largest independent
mobile advertising network. In April 2011, we served 35.0 billion impressions in 160 markets
worldwide. With a physical presence in 5 continents, over 5,000 publisher partners, and a broad,
independent market footprint, InMobi is well positioned to provide an objective, comprehensive,
and representative view of the mobile advertising market.
Research Objectives
We have three goals with this research:
1. Help educate the market. Statistics and information about the state of mobile
advertising are lacking in most regions of the world.
2. Track consumer opinions regarding mobile advertising. With any emerging
medium, the consumer perspective is critical to overall market success. We see
a need for trending across regions in this area.
3. Collaborate with industry thought leaders to increase market insight and improve
information quality ongoing. As a global independent company, we value
partnerships that will strengthen our understanding of the market. Researchers,
thought-leaders, and analysts are encouraged to contact us and apply for full
partner access.
Contact Information
www.inmobi.com/research
research@inmobi.com
Twitter: @inmobi

3. NETWORK DATA
Specifications
Data in this report are sourced from our global mobile advertising network which served 35.0 billion
impressions in April 2011. With 114 countries receiving over 10 million impressions in April 2011, we are
able to claim one of the broadest and most representative networks in the world. Exact specifications are
as follows:
• Global Available Impressions in April 2011: 35.0 billion
• Regions Represented: Africa, Asia Pacific, Europe, Middle East, North America, and South America
• Countries Represented: 114 countries with over 10 million impressions in April 2011
• Base Measure: Available Impressions
• Reports: Market Summary, Manufacturer Share, OS Share, and Top Handsets & Connected Devices
• Time Periods: January 2011, April 2011
• Comparisons: April 2011 versus January 2011
Representation
InMobi is committed to an independent and transparent leadership position in mobile advertising. With that in mind,
the following issues are present in this data.
Mobile Advertising Market Definition: This report covers mobile display advertising only including both WAP and
APP. SMS/Text and Search are NOT included in this synopsis.
Scale and Time In Market: Representation within the network is a function of the both scale and time in market.
Readers can expect more fluctuation and variance in younger, smaller markets for the company.
Publisher Mix: As with any ad network, market representation is a function of the publisher mix. We have over
5,000 publishers of all sizes and content types, but changes to the publisher mix in a given market could impact the
data.
Advertiser Mix: Similar to publisher mix, the advertiser mix could impact the numbers in our network, although to a
much lesser extent than publishers.

4. GLOBAL SUMMARY
Global mobile impressions on the
InMobi network continue to grow at
a steady pace, growing 11% from
January to April 2011.
" InMobi now represents over 35 billion impressions
a month Globally. The volume of mobile
impressions and consistent growth point to the
significant value mobile devices provide as a
marketing channel to global advertisers.
Smartphone growth continues to
lead channel growth, gaining 2.3
billion monthly impressions in 90
days.
" Penetration of smartphone devices and increased
media consumption via these devices is evident.
Consumers across the globe continue to adopt
more advanced phones and use it as a primary
means to access media.
Available Impression Volume & Composition
Jan-11 Apr-11 % Chg Mobile ads in native applications
Total 31,614,433,789 35,028,855,492 11% grew by 32% in just 3 months,
Smartphone 11,466,416,207 13,766,139,792 20% showcasing the focus on this mobile
Advanced 20,148,017,582 21,262,715,700 6% access method.
WAP 26,688,914,269 28,518,756,617 7%
App 4,925,519,520 6,510,098,875 32% " Mobile web pages still remain the bulk of mobile
ads globally, but native mobile apps continue to
grow at a rapid pace, given the growing
developer community.
Source: InMobi Mobile Insights – Network Research, April 2011

5. GLOBAL
Global OS Share: April 2011
Available Impressions
OS Impressions % Share Pt. Chg
Nokia OS
20%
Nokia OS 6,838,150,588 19.5% -0.6
25%
Symbian OS
Symbian OS 6,335,241,927 18.1% -0.1
Android
Android 5,874,242,973 16.8% +3.3
iPhone OS
5%
iPhone OS 5,703,575,652 16.3% +0.4
18%
RIM OS
RIM OS 1,701,706,446 4.9% +0.6
Others
16%
Others 8,575,937,906 24.5% -3.4
17%
Nokia OS and Symbian OS continue to lose share to the Android and iPhone OS
platforms. Sustained Android growth will make it the top global platform in late 2011.
" While Nokia OS and Symbian OS lost a combined -0.7 share points, Android and iPhone OS gained +3.7 share points. This
continuing trend will likely make Android the #1 global platform by mobile ad impressions in late 2011.
" In July 2010, Android represented just 3.5% of the global market, gaining +13.3 share points in 10 months.
Source: InMobi Mobile Insights – Network Research, April 2011

6. GLOBAL
Global Manufacturer Share: April 2011
Available Impressions
Manufacturer Impressions % Share Pt. Chg
6%
Nokia
4%
Nokia 12,967,971,512 37.0% -1.0
4%
Apple
Apple 5,703,575,652 16.3% +0.4
5%
Samsung
37%
Samsung 5,350,156,208 15.3% +1.2
5%
SonyEricsson SonyEricsson 2,644,395,939 7.5% -0.3
HTC HTC 1,889,321,765 5.4% +1.2
8%
RIM RIM 1,701,706,636 4.9% +0.6
LG 1,434,421,903 4.1% -0.8
LG
15%
Motorola 1,210,444,246 3.5% +0.0
Motorola
16%
Others 2,126,861,631 6.1% -1.3
Others
Nokia holds the #1 manufacturer spot Globally, holding a 37% share of impressions.
" Popular Android manufacturers gained the most traction since January 2011, with Samsung (+1.2 share pts) and HTC (+1.2
share pts) gaining the most share.
" Nokia still commands more than 2X the share of the 2nd ranked manufacturer, Apple. This is due to their strength in markets
like Africa and parts of Asia where Nokia devices still dominate the market.
Source: InMobi Mobile Insights – Network Research, April 2011

7. GLOBAL
Global Handset and Connected Device Detail: April 2011
Handset Impressions % Share Pt Chg
Apple iPhone 3,601,262,853 10.3% -0.4
Apple iPod 1,639,039,255 4.7% +0.1
Nokia 6300 752,864,670 2.1% +0.0
Nokia 3110c 675,790,507 1.9% -0.2
RIM BlackBerry 8520 642,408,901 1.8% +0.4
Nokia N70 536,099,248 1.5% -0.1
Nokia N73 511,083,179 1.5% +0.1
Apple iPad 463,273,544 1.3% +0.7
Samsung GT-I9000 442,362,832 1.3% +0.8
Nokia C3-00 431,780,180 1.2% +0.4
Nokia 5233 400,054,359 1.1% +0.3
Nokia E63 398,084,021 1.1% -0.1
The Apple iPhone (10.3% share) and iPod (4.7% share) are the top 2 devices on a
global basis.
" Device fragmentation beyond the Apple iPhone and iPod is clear, with most devices holding less than 2.0% global share.
" The Apple iPad now represents over 463 million monthly impressions on a global basis, signifying the massive opportunity of
advertising via tablet devices.
Source: InMobi Mobile Insights – Network Research, April 2011

8. GLOBAL
Global Summary: April 2011
Available Impression Volume & Composition Top 5 Manufacturers: % Share of Available Impressions
Jan-11 Apr-11 % Chg Jan-11 Apr-11 Pt. Chg
Total 31,614,433,789 35,028,855,492 11% Nokia 38.0% 37.0% -1.0
Smartphone 11,466,416,207 13,766,139,792 20% Apple 15.9% 16.3% +0.4
Advanced 20,148,017,582 21,262,715,700 6% Samsung 14.1% 15.3% +1.2
WAP 26,688,914,269 28,518,756,617 7% SonyEricsson 7.8% 7.5% -0.3
App 4,925,519,520 6,510,098,875 32% HTC 4.2% 5.4% +1.2
Top 10 Handsets: % Share of Available Impressions Top 3 OS Systems: % Share of Available Impressions
Jan-11 Apr-11 Pt. Chg Jan-11 Apr-11 Pt. Chg
Apple iPhone 10.7% 10.3% -0.4
Nokia OS 20.2% 19.5% -0.6
Apple iPod 4.6% 4.7% +0.1
Symbian OS 18.2% 18.1% -0.1
Nokia 6300 2.1% 2.1% +0.0
Nokia 3110c 2.1% 1.9% -0.2 Android 13.5% 16.8% +3.3
RIM BlackBerry 8520 1.5% 1.8% +0.4
Nokia N70 1.6% 1.5% -0.1
Nokia N73 1.4% 1.5% +0.1 " InMobi Global network grew by 11% over the
Apple iPad 0.6% 1.3% +0.7 past 3 months.
Samsung GT-I9000 0.4% 1.3% +0.8
Nokia C3-00 0.9% 1.2% +0.4 " The global revolution to smartphone adoption
continues as smartphones grow by 2.3 billion
monthly impressions in just 90 days.
" Android growth continues on a global basis
and is likely to surpass Nokia OS and
Symbian OS in late 2011.
Source: InMobi Mobile Insights – Network Research, April 2011

9. NEXT STEPS
This data is part of a series of network reports that are released monthly.
Additional regions and markets will be released throughout the month.
Release Schedule
Beginning April 2011 data, network data will be released on a monthly basis. The next planned
release is May 2011 data, to be released in mid June 2011.
Open Source Research: Getting Involved
Objective industry analysts and thought-leaders are encouraged to comment, question, and
participate. We will be sure to consider and update the research based on feedback and
questions to improve the quality for all end users.
To participate, contact us at Research@InMobi.com.
To download the full reports, visit us at www.InMobi.com/research