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Making
Open Source
   More
  “Open”
“Closed” or
“restrictive”
OSS licenses
GNU General Public
  License (GPL)
“Open” or
“Permissive”
OSS licenses
Viral effect
of the GPL
Open source
means business
“Why don’t you
use open source
  software?”
GPL ⬇
Apache
 MIT
Legal complexity
New open source
business models
Open data and
  Open APIs
GPL v2
      is
unintelligible!
“Combined work”
       and
  “Distribution”
GPL version 3
Free Software
  Movement
BusyBox
Software Freedom
  Conservatory
GPL enforcement
Conditions for
    license
reinstatement
Retroactive
disclosure
GPL and
  open source
business models
Dual licensing
Copyleft deters
  competion
SaaS
MySQL
Copyleft
 waiver
New open source
business models
Hadoop
OpenStack
Cassandra
CloudFoundry
Note.js
FlockDB
Palm webOS
NASA
Android
Facebook,
 Google,
 Amazon
IT-infrastructure
  applications
Non-business
differentiating
   software
Cost sharing
Services
Apache v2
   MIT
Maximum choice
 and flexibility
No copyleft
Less need for
 lawyers :-(
Quality of the
  software
Low cost of
 freeriders
A final trend
Jay Lyman
    of
451Group
“open APIs are
 the new open
    source.”
“Openness trend”
DevOps
Polyglot
programming
“Open enough”
Amazon
web service
Conclusion
Proprietary
 software more
“open” through
    openAPIs
Open source
  software is
becoming more
    “open”
“Openness” is the
   real virus!
Thank you!
Martin von Haller Groenbaek

  partner, BvHD Law firm
       Copenhagen

      mhg@bvhd.dk
       www.bvhd.dk
  Blog: www.vonhaller.dk
    Twitter: @vonhaller

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