All right, I've looked around and can't find anything solid. Can someone explain how x64 versions of Vista will be delivered? Will you have to buy a separate 'x64' version of Vista (just like XP), or when you buy, say, Vista Home Pro, will it have both versions on one disk that can be installed at your will. The main question is this, does purchasing a Vista license give you access to both the x64 and x86 versions? I've heard both, and from the same sites. Everyone seems to be contradicting themselves. Any clarification would be wonderful, sources much appreciated.