I've been able to successfully install Vista Home Premium Edition on my X41 Tablet, and am REALLY liking the experience so far. I'm writing an article to help people decide if they're ready to take the plunge, but in the mean time, I've gotten a lot of hits on my other X41 Vista post, so I thought I'd point people to a very helpful post I found. Give Our Abilities Time has a great article on a couple of the pitfalls of installing Vista on this machine. Most notably, the relatively hard to find ThinkVantage Fingerprint Software v5.6 which is required to get the fingerprint reader working.

All in all, things are working pretty well, and I'm very happy with the overall experience.