According to Palamida, this week has seen a 19% increase over last in the number of projects that have adopted GPL v3. As August 31st, our research indicates that 534 projects have officially adopted GPL v3, as compared to 450 on August 20, 2007. No new projects have adopted LGPL v3, with the number still holding at 27 projects.
Palamida also mentioned that it is "finding a number of projects that have adopted the GPL v3 (based on their web site, comments in the header files of their code, etc.) but they are failing to update their COPYING files, which still have the GPL v2 license texts.
So, maybe the numbers are even better than have been reported?