A nice recent example of the benefits of open-sourcing software is Second Life, the well-known online virtual world. The Second Life client was released under the terms of the GNU GPL (version 2) roughly two weeks ago.
Since then a lot of community activity has been observed:
Most of these things (and others I might have forgotten) would certainly not have happened with the closed-source client anytime soon...
Is this just me or do we see a highly increased rate of (important and interesting) stuff being released (or announced to be released soon) under the terms of the GPL lately?
A few examples:
This is a great trend and good news for all of us. A special thanks to Sun for releasing more and more stuff under free licenses!