Palamida is tracking adoption of GPL v3 on a special blog. The last post mentioned an incredible rate of adoption for it. There are already more than 2,000 projects using the license (or a variation of it, like LGPL v3), with a good chance to reach 5,000 by the end of the year. I feel we are about to reach the tipping point, when everyone will move from GPL v2 to v3.
In parallel, Palamida has decided to track AGPL adoption. There are already 42 projects using it, even if it has just been approved by the OSI. And even if Google says they won't host any AGPL project on their site, because "there are plenty of other hosts out there that are happy to serve you"...
I am looking forward to tracking AGPL growth. It might initially be a niche, because only people developing software to run as a service will get it. But with SaaS getting traction, it is going to grow really fast down the road. I actually have a bet with Mark Radcliffe that in five years AGPL will overtake GPL. Now we have a way to track it...
I know, I am going to lose the bet with Mark, but I just won the March Madness game in the office, so I am already up one... I can take it.