Guys, let´s wait till E3.
The Wii is an anomaly, it´s the first time Nintendo released a very underpowered home console compared to the competition, and since they seem hungry for all those core 3rd party games, they can´t afford such a big gap in power again.
So, I imagine the Wii U will indeed be more powerful than the 360 and PS3, and less powerful than the next Xbox and PS4, the important question is...by how much?
1.how much is the gap in power between the Wii U and 360/PS3?...the answer to this question, I expect to see this year.
2.how much will the gap in power be between the Wii U and the next Xbox/PS4?..the answer, probably sometime next year.