I've just pushed a first prototype of the forthcoming Bullet Physics integration – and a small video of course! 
http://www.youtube.com/watch?v=ruPEhDtXmDI
http://www.youtube.com/watch?v=ruPEhDtXmDI
Hah. That's what I thought when it starting working!Cervator said:Bwahahaha, the explosions are awesome. Blocks flying everywhar!