The gameplay for the arcade titles seemed excellent, with frame rates holding fast even during graphically intensive 3D sequences (such as the chaotic, scattered-pixel play of Rocket Riot). The Harvest, while a bit familiar to our eyes, still showed the graphic promise of the platform. Gameplay was definitely well suited to a touchscreen device, though Microsoft's Kevin Unangst told us that developers could target controls for both touch and QWERTY-equipped phones (provided that a touch version was always present). The screen response seemed accurate and sensitive, reacting quickly to our input. Particularly in the Crackdown title -- a tower defense game "set in the Crackdown universe" -- pinch zooming, rotation, and finger tracking was excellent.
Unfortunately, for the launch of Windows Phone 7 there won't be any true multiplayer options besides turn-based games, though Kevin seemed to indicate that head-to-head gaming (whether over a local or wide network) was in the roadmap. It only makes sense considering this is Xbox Live we're talking about, and it seems like something that would have been baked in from the beginning. We may be a little spoiled from the variety of multiplayer titles on the iOS platform, but that was one knock against Microsoft here. One other small issue we noticed was that game load times seemed long -- a little too long. Again, Microsoft says things are still unfinished, so we're hoping this is a side effect of debugging and non-optimized builds.