I would certainly hope that the 32 bit would be dropped. Even with Vista, majority of the OS are 32 bit. Everyone I know have 32 bit Vista installed and no 64 bits available. Even the one I'm using is 32 bit.
Office 2007 is a little tougher to use I feel. Office 2000, Office XP (2002), Office 2003 were all so similar that it was no big deal. But wow, Office 2007 is like a whole new design. I can't even use it half the time because I would be spending too much time trying to find a stupid function or feature. I'm still using Office 2003 that's on my laptop, lol. The compatibility mode of Office 2007 is neat. It's the first time I've seen that before. It allows easy transition from older Office files to work with new Office software.
Even Windows Live Mail (I upgraded to the Beta instead of using regular Hotmail) is similar to Vista and Office 2007. Both have these so-called "Start" buttons. The Windows Live Mail looks very similar to Exchange, but has some Hotmail qualities so that's pretty nice. I like it. Im' use to it already. The preview pane is nice in there. I just can't wait for them to get out of the beta phase.