the latest nightly build on CM6 pretty stable. I have ran the last 3 nightlies...and its the best of them all.
ability to overclock, OVER 30 fps natively (i'm avging 50,) apps2sd, working cameras front and back WITH video...
there are FCs here and there...but I'm ready to use this nightly for my everyday and give it a shot.
am including the link to XDA for the unofficial thread...beware that there are LOTS of junk in that monster of a thread...so take your time...and use search when applicable.
http://forum.xda-developers.com/showthread.php?t=729367