I need to apparently post twice in order for people to see it, but the rumours that the Wii U is underpowered compared to todays consoles is rubbish.
Quick Googling reveals that this rumour about the Wii U's lack of power, from 'an anonymous developer' (probably one with a vested interest in the Wii U failing), is complete BS.
Crytek founder Avni Yerli: The hardware is "very good". "Our guys in Nottingham, they are very happy with their tests on the dev kits and they're excited about it."
Tekken designer Katsuhiro Harada: Very 'impressed by the 60fps running of the game (Tekken) on the Wii U'
Vigil Games: “We had the game at the same level as high end pc version in a matter of days and a few lines of code got the game up and running on tablet in 5 mins.”
Gearbox: "The Wii U version (of Aliens: Colonial Marines) has so much more to offer... no other platform can do what the Wii U can do. The machine itself will be one of the best looking versions of the game [sic] because they’ve got more RAM than some of the other things [platforms]“, says Martel. “...they’ve got this really great processor.”
Epic Games: “It will do things current HD consoles simply cant do its going to be a powerful box.”
”EA: “Wii U is not a transitional platform, it is a true next generation system.”
THQ: “WiiU is just alot more powerful than current HD consoles it does 1080p very easy.”