Hrmph. It's pretty, and perhaps peppier (dunno as I've been using it for about 7 and a half minutes now) but it broke my mouse. And my palm. The jury's still out about Mail, also.
Judging from the swearing going on across the room, the Samba share is not cooperating, either.
NetNewsWire, Firefox, Xjournal, Adium all seem fine. Widgets are nifty.
I dunno, I think I'll go watch more Babylon 5 and play with this later.