If there is an iTunes update, I hope it'll fix the thing where you're listening to music or watching a video in iTunes while also ripping a CD in it, & the music/video you're listening skips while it's ejecting the CD. I hate that! Does ejecting a CD really require that much CPU time?
Maybe it's the paranoid skeptic in me, but if I have a bad feeling about any iTunes update Apple puts out tomorrow. I just fear it'll either still be a Carbon app or if it goes Cocoa, it'll be Snow Leopard only. For Carbon, I could understand how rewriting a whole app (especially one as big as iTunes) would be a chore, but it would be really hypocritical of Apple to tell all other Companies to go to Cocoa when they don't. As for the going Cocoa in iTunes, it might be Snow Leopard only, but I wouldn't totally bet on it. If it is Snow Leopard only, it'll only be a business ploy to get people to upgrade to Snow Leopard (and by extension, a new Mac for all those PPC users out there). Although, it would be interesting to see how fast iTunes would be with OpenCL & Grand Central. Ripping CDs should be quite a bit faster, with your CD drive being the main bottleneck. Although, iTunes does a good job at maximizing CD speed already I find. It's more of an issue of how good the actual CD is rather than the drive.