Agreed. There are some beta drivers but not all. It is kind of fun to toy with but it isn't really productive. There is hardly any 64bit software available. Well, none that I've found though some probably have some. 32 bit software (though NOT drivers (at all!
) runs well generally speaking. It has been reported that games are a bit slower while productivity apps like Word, Excel... run noticeably quicker. This is a beta system however and quirks are to be expected.
It can be fun to toy with but if you're happy with WindowsXP (32bit), stay there.