I’m using Vista build 5381 from connect.microsoft.com.
It is very responsive! I don’t have Aero running, of course.
I don’t recall if I had to install the audio driver or if it found it without help, but it’s working.
When installing the digitizer, make sure to choose the b_stage driver from your D drive. A_stage doesn’t work at all. Even b_stage, though, doesn’t calibrate perfectly.
I had no trouble installing the driver for the display. I just browsed to the display settings, chose to update the driver and told the system to search the D driver for the driver. I cannot choose 800 x 480, but 800 x 600 looks really good, so I’m not unhappy. Watching video could be a problem if Vista won’t let us drop down to 800 x 480, but I’m sure a future driver will fix this problem.
Bluetooth seems to be running, but I haven’t installed a driver, specifically, and I haven’t tried to connect anything.
I have not been able to get Wifi to work, yet.
Update: If you DO install Vista on a new partition on your eo, be sure to edit the boot menu to default to XP.