I've been using version 0.9.1 x86 since Feb. 2009 and it seems to work quite well for me.
My machine is a Core duo quad w/4 gigs ram and Nvidia Gforce 8600 GT.
Most games play pretty well. Sometimes the sound will slow or be off a little but making
a smaller window usually fixes that. Most of the time I use window size #2 setting.