i have not tried it (yet).
i doubt you will find anyone who has or will. the project is progressing nicely now (something tells that Summer of code really helped) but it still lacks several important features not the least of which is wireless drivers. and before you go looking at the site and see a news post about those drivers being ported from BSD, let me say that the dell wireless 1397 (the "basic" b/g one) reports itself as being a broadcom chipset which is NOT yet supported by the wireless port. again, i haven't tested this yet myself, but the install process is supposed to be a pain because of partitioning and the boot manager (GRUB or ..haiku?).
if anyone actually does do this though, please let us know!!