it has no valuable use at this time. it's kinda like the whole console race back in the day. nintendo was 8 bit, the genesis came out and was 16bit, then 32bit systems were developed, then N64 and others followed.....

Bit = colors display....in a nutshell. With normal windows xp, "most" video cards support 32bit (which is 16.9 million colors), the more colors your OS can support (in theory), the less strain on video cards.

unfortunately, there is only a handful of software that currently support 64 bit processing, so it's pretty much useless at this point.