@Verno: Most of the points you raise are valid. Metro apps handle multi-monitors terribly and it was clearly a last minute implementation. Requiring Metro apps to be distributed through the Windows Store is both unnecessary and anti-competitive. Boot to desktop should be an option - in fact it should be default with mouse & keyboard setups.
As for desktop apps, they ARE actually allowed on the store. The trouble is that Microsoft takes a 30% cut of the sale, so you're not going to have Adobe putting up their Creative Suite software any time soon.
As for the Surface RT, it's WAY overpriced and a lot of people will assume that it runs x86-64 applications. Even the Pro version is behind the likes of the Nexus 10 and it will be dramatically more expensive. It was never intended to be a serious product - it was simply designed to show that Windows 8 runs on tablets. In that respect it did what it set out to.