Hahaha, kind of funny seeing the heated debate on CS2, and there's some mention of Vista, even!
Anyway, from a Graphic Designer's perspective, it can be seen as a potential sales boost, it's an incentive in getting a new Mac that's Intel based.
I've known a few people who own Quad G5; they're putting the thoughts of buying an Intel based Mac aside due to the fact the Adobe apps aren't UB yet. However, they all have said the samething, that they will be putting the thoughts back once Adobe turn all their apps in to UB apps.
The rumors about performance integrity updates are nothing, but like a shiny red new bike to me! I'm so giddy, I really hope they're keeping the Core Image support on the final build (Opel GL Zoom? - Core Image? Core Animation?). Imagine, just the fact it's not emulated anymore, of course, the optimizations for Intel CPUs, and :crossing fingers: Core Image support, and myessss......
Personally, I won't trust beta software, I'd run it, side by side with CS2, until the Beta is confirmed to be stable enough (which I doubt, there's gotta be quirks here and there). I gotta use something more reliable, even if it's slow, to pay the bills

(and assignments! -ugh-)