Speaking at the keynote, Microsoft's VP fow Windows Web Services Antoine Leblond said that desktop PC sales will fall behind those of tablets. Of course, he did not miss the chance to explain just how great Metro interface is for tablets.
He pointed out however that touch technology is coming to PCs as well, which will ultimately change the way user interfaces are designed, much like the mouse did. Indeed, some may recall that the arrival of mouse meant the start of actual aiming in first person shooters, and there is no reason why touch shouldn't pull off a similar feat.
The company stressed that this does not mean it will turn its back on laptop and desktop users. Leblond underlined that Metro works equally well on desktops and tablets. Unfortunately, proving this turned out to be a bit difficult as the demo laptop repeatedly refused to recognize gestures. Meh, we'll just take Microsoft's word for it.