I really don't understand the Wii U - the peripheral is basically a gimmick considering how much it weighs and the 3 hour battery life. Nintendo knows they are

I really don't understand the Wii U - the peripheral is basically a gimmick considering how much it weighs and the 3 hour battery life. Nintendo knows they are going to get fucked in mobile from Android/iPhone games. What are they going to do? What can they do? I mean aside from creating their own gamephone line, I don't think there is anywhere for them to escape.