There's a little controversy in the Drupal world, a fork by Nathan Haug, aka QuickSketch. Last week he tweeted:
Fork
🕑Apr 23, 2009 🖋Erik Olson
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A Crossroad in the Future of Drupal
As the dust begins to settle across the tech industry from the recent acquisition of Sun Microsystems by rival Oracle, a number of projects in the Open Source community, including Drupal, will have major strategic decisions to make that could deeply impact their future success.
🕑Sep 15, 2006 🖋John Locke
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On Forks
Open Source projects have to deal with something most proprietary projects don't: forked projects. What's that? It's when a person or group exercises the terms of an open source license to create a derived version that competes with the original.