Mouse , keys and metro
Touch is exactly what Metro is geared for. Although one would hope Microsoft or a 3rd party would add mouse combo capability for dragging the metro ui around either before release or soon after. If they don't then they should as it would make the Metro UI more desktop friendly J.M.O.
As for it being counter intuitive there are features that will make a lot of migrants from earlier releases of Windows want to run back home to Seven and the Start Menu. Hopefully someone reads some of the constructive comments and makes use of them whether they be +or-.