The Fujitsu U810 UMPC device I purchased a few weeks ago came preloaded with Windows Vista Business and I lived with it for a couple of weeks because I really wanted to give Vista a chance on a dedicated device. However, the U810 specs are quite minimal for Vista (1GB of soldered RAM and an 800 MHz processor) and it was working hard to keep up. I thought I would use the U810 (named Ubacca) for minimal on the go purposes, but even with these practices it still hung up a bit when switching applications and wasn’t very snappy. The nail in the coffin happened yesterday when I tried connecting the Advantage to Ubacca to install an application and it wouldn’t recognize the USB port. I then reformatted the hard drive and installed Windows XP Tablet Edition (the DVD came with the U810 I bought from Fujitsu).
I loaded up my 15+ applications (PocketBible, SlingPlayer, Nokia PC Suite, Office, etc) last night and XP seems to fly on this portable device. So far I am much happier with XP and while Vista looked great, it seems to focus more on multimedia and transitions rather than on working efficiently. I’ll give XP a try for a while and see if this is what I stick too. I wish I could upgrade to 2GB of RAM as that may help, but I knew the limitation going into this purchase so will make it work as best as I can.