We've known that proper Xbox Live gaming (powered by XNA) was coming to Windows Phone 7 devices, but we'd yet to see any of that thumb-spraining goodness in action besides a brief demo and a few developer videos. Well, Microsoft has finally come clean with details about its launch strategy for the platform, and from where we sit, it's definitely looking pretty promising. First off, the company has announced a full list of launch titles for WP7 handsets, including some familiar names and franchises like Castlevania,