Apparently, there still some hope in getting Aero running in the first generation of Intel based UMPCs according to this post of Josh Bancroft:
Since I posted a comment in one of the previous discussions about the 915 Graphics Vista driver issue, that I was going to talk to the graphics group about the possibility of releasing an open source and/or "beta" unofficial WDDM driver, to let you at least try to get Aero Glass, Movie Maker, and DVD Maker working in Windows Vista, you've been coming here every day to see/ask if there's been any progress. So here's an update:
I haven't talked to the graphics group yet, because I'm trying to identify the right people to talk to. That's hard in such a big company (Intel has almost 100,000 employees, and I don't work directly with anyone in the Graphics group). But I'm going to find someone, eventually.
To me, the fact or possibility of having a new driver coming soon capable of running Aero is a good news. Will I use Aero? I doubt it. All depends on the impact of it on my performance.