@chyman.. i'm curious to see how(if) it would run on a 13" mbp or air..
those integrated graphics give all sorts of problems with sketchup and rhino osx..

fwiw, if i were beta_ing, it'd be on a MacPro 1,1 2.66xeon w/ 8800gt and a MacBookPro 6,2 15" 2.66 i7 w/ 330M
both running 10.7.2
i'm also testing rhino osx (for the past 2 years) and am a sketchup veteran :)