Luis Villa is running a great series on what GPLv3 means for developers. Here's a snippet:
Q: I'm a developer, and my current code uses GPL v2 - should I update to the v3?
A: Probably. While the license does not include any huge wins for all developers that would make an upgrade obvious or mandatory, there are small wins here for virtually anyone who seeks to have a functional FLOSS project. In particular, every developer should appreciate the improved (if still imperfect) patent protection, the ability to copy and paste APL-licensed code into your code, and the internationalized legal language, offering them stronger protection outside the US's copyright system.… Read more