we all can't wait for builds to emerge... but believe me, a B11 is *very* early. Mac OS 10.1 wasn't useable until it went to the 'G' builds, Mac OS 10.0 not until 'K' builds, so... I'd wait some time, anyway. (And this also leads to my opinion that Mac OS 10.2 won't make a public appearance until July, not March.)