They're definitely cribbing some from tablets, but they're also doing so using WinPhone7, which was itself an innovative take on touchscreen phones (at least, c

They're definitely cribbing some from tablets, but they're also doing so using WinPhone7, which was itself an innovative take on touchscreen phones (at least, compared to the Android/iPhone norms). But I think the overall idea of subdivided rectangles with large touch targets is a pretty interesting one. (I'll be less excited if they stop there.) :P