I've been running Windows Vista on my Lenovo X41 Tablet for quite some time now, and the biggest problem that I had was always having to ask other folks to burn CDs or DVDs for me. The built-in DVD/CD writing tools do not work because my video card doesn't meet the system requirements (yeah, figure that one out...), and none of the typical software packages work on Vista yet.
ISO Recorder v3 has fixed all that for me. It will burn ISO files to CD or DVD within Vista, and seems to be significantly faster than the tools I have used in the past.
Big kudos to Alex Feinman for building such a cool application.