I know how to get vista to install without a cd-key, but I dont think thats the kind of hack your looking for .
No one bothers looking for hacks for vista anyway. I think there is a book coming out called "Hacking Vista" by the same guy(company) that did "Hacking XP". Its what your looking for. How to speed up the OS, make is safer, etc...
well iono i saw somewhere on youtube, the guy took his screensavers, "the ribbon looking one" and posted it as a dreamscene, well if u guys find nething tell me and ill try it out