Bill Gates “speaks on”: Microsoft Surface and the “other” tablets:
“I actually believe you can have the best of both worlds. You can have a rich ecosystem of manufacturers and you can have a few signature devices that show off, you know, wow, what's the difference between a tablet and a PC.”
As nice as the idea is in theory, so long as Metro and Classic Windows are almost like two different systems that can run parallel on the same system, I don't think Microsoft has found the “best” of any world. Whether having a traditional Windows “experience” next to the tablet interface is something people will want will be telling when Windows 8 comes out.