I also have a Windows Phone (Samsung Focus, AT&T). Got it on Windows Phone launch day. It is a great phone, and I'm really looking forward to Windows Phone 8 (will definitely upgrade at that point), and these new Surface tablets. I think MS is on the right track in bringing all these devices together, it is just unfortunate that the role Media Center will have is a little unclear. I'm hoping they bring Media Center functionality into the Metro fold (ie. Live TV, DVR). Would really like to watch Live or Recorded TV on one of these tablets.
I like the fact that MS has basically raised the bar for any of their partner OEMs about what it means to create a great tablet. Dell, HP, Toshiba, Asus, etc. will have to raise their game above clunky, low quality, bloatware loaded tablets if they are to play in this game. That is a good thing.