I have not used a windows phone, so I am not sure about the overall experience. If windows phone is doing well and has a good amount of apps, why doesn't MS use that as its tablet platform? MS has tried for years to produce a decent tablet and phone. Why not keep the 2 markets separate?
I think what MS should have done is enhance windows 7 experience. I think what would have been nice, is multiple desktop you can swipe between with even with a track pad. Instead of doing away with the "Start Button" they could have done something like android with clicking a button and have icons come up, or even folders like android. From what I have seen of the metro interface, it just seems so crowded on the screens.
I love windows 7 and feel, if they incorporated features of a tablet into in for laptops and desktops that would have been a great reason to upgrade to windows 8.
Oh another cool feature which would have been cool, is if they have multiple screens, they could allow different profiles for different screens.
That would work great if the pc is powerful enough. For me I have a powerful desktop running as a htpc. I would love to have a screen for the kids, a screen for me, a screen for connecting remotely too. Etc. If MS did something like that for windows 8 and took there windows phone and made it very simple for people to connect to one of the desktops, I think that would have really helped them break into the tablet market.
But ohh well, I will continue to buy my android tablets, as windows tablets are just lame.