Hi,
With the Bullet 2.x code-base no longer being worked on and the Bullet 3.x code-base being the focus of all new development, I've decided to migrate the old Google Code repository into GitHub as-is (without merging it into the bullet3 sources like Erwin has been doing). I used svn2git so I've got full history on the repository.
https://github.com/TheJosh/bullet2
I don't have any major plans coming up to develop the code-base further, but I might decide to as time goes on, depending on the kind of response I receive. This isn't meant to be a major fork or uprising against Erwin or the Bullet Physics community, but more just a preservation of the code-base if/when the Google Code site is shut down - of course if Erwin decides to give us his blessing, I'll happily continue to develop the Bullet 2.x code.
Cheers,
Josh