The past three builds have been running great here. I don't see any problems in 8C44 (but then, you know, I can't test a G5's SuperDrive since I don't have any etc.) and I think it's just about as finished as can get. I think we'll later say that 10.4.2 was a really good update in the Tiger era (at least I hope so...). I guess Apple wants to convince every last one of the critics that Tiger is "better than Panther" now. (But for me, too, there's still some way to go with Spotlight...)