It's a public beta, not a leaked beta. If you don't have a Trillian Pro key, it'll still run as Trillian Basic. Thankfully I renewed my membership :D

video support still blows. Takes up way too many cpu cycles and the only one supported is Yahoo still, it seems.

Tabbed chatting is nice...I've grown to really like it after having it enabled for so long in AdiumX.

New default interface is a bit cluttered if you have a lot of friends.

New config screens are nifty

all in all, i'm digging it.