http://playeressence.com/metroid-prime-4/

So MP4 is what Retro is working on and the idea is a dual release game?

Considering the huge tech difference between WiiU and 3DS... I'm wondering how good or bad this could be?

EDIT: likely fake... but the question still stands... good or bad idea?

Nintendo copies SONY, OMG!

But we don't want no stinking console games on a portable...

false and no. Metriod is good 3. This isn't halo were nintendo lies to you.

Clearly a false rumour.

Well, Smash Bros Wii U and 3DS are two separate games

If Metroid is also, then to me it's fine. Metroid already had a simultaneous release. Prime and Fusion were released on the same day, if I recall correctly.

Did you post this before or after having Sony All-Stars in your signature section? 

http://www.ign.com/articles/2012/08/14/buy-ps3-playstation-all-stars-get-vita-version-for-free

Yes, this Smash Bros. type game is going to be both on the PS3 and Vita.  Or did you mean to say "But we don't want no stinking Nintendo console games on a portable"?

Making Metroid Prime for both Wii U and 3DS sounds like an awful idea. MP should be on consoles.

No, we can deduce that they are indeed using the same tech, a reliable John Smith said that WiiU is as powerful as the 3DS.

bad idea. Unless they are built different. Same story, same bosses, wiiu is 3d, 3ds is 2d.