2. Airplay SDK (Marmalade)
http://www.madewithmarmalade.com/
$149
The Airplay SDK is a software development kit
for developing rich applications on mobile
devices such as the iPhone and iPad.
C++
3. Unity 3D
http://unity3d.com/
Game Development Engine
Target platform can be switched instantly, so
you can develop from a single source for
mobiles, web, PC/Mac, and consoles.
Unity supports three scripting languages:
JavaScript, C#, and a dialect of Python named
Boo.
All three can make use of .NET libraries which
support databases, regular expressions, XML,
networking and so on.
4. Shiva 3D
http://stonetrip.com/
3D Game Engine with Development Tools
Cross Platform Tool
C++
Start learning from here:
http://www.stonetrip.com/developer/
5. Appcelerator Titanium
http://www.appcelerator.com/
Develop using a JavaScript-based platform
with an integrated Eclipse-based IDE
It is also open source, and apache licensed
Tap into a community of 350,000 application
developers worldwide.
Training Programs:
http://training.appcelerator.com/
6. Adobe PhoneGap
Free Open Source Framework
Create mobile apps for
iOS, Android, Symbian, BB, Windows
Phone, Bada & Palm WebOS
Code in HTML, CSS & Javascript
Well defined APIs
7. Genuitec MobiOne
Build Cross Platform Mobile Apps in Minutes
MobiOne cross platform apps are built on the
popular HTML5 hybrid-native app model using
the open-source Cordova/PhoneGap ™
framework.
HTML5, Javascript & CSS
$99.95
8. DragonFire SDK
http://www.dragonfiresdk.com/
Programming in C and C++
$99.95
No Free or Trial version available
You upload your source code to the Dragonfire
server, it gets compiled with the appropriate
iOS files sent back to you.