In both cases the Wii U tablet / Smart Glass are fairly irrelevant unless you are playing multi-player games where hiding your strategy is important. They might spur a few new improvements to games, but nothing earth shattering...
I like the MS approach more... I don't need another gaming peripheral at home. Let me pick up my smart phone or a tablet to accomplish much the same thing... It may not be everything that Wii U is, but it does the major things I would kind of, sort of, but really don't care about...







