There is no doubt in my mind that the Wii U (which mind you, is a lame rip on apple's "i") will have the same sort of mundane success as the 3ds. Think about how incremental the 3ds was over the DS and how the wiiU will be over the wii.
I remember working at gamestop when the WII launched and you have NO IDEA how insanely ridiculous the hype around that console was; it was all anyone ever talked about. That being said, the hardcore Nintendo and the kid-friendlies were already going to buy it. It was the fact that it was the 1st of its kind: motion control; that is enticing and a brand-new experience separating from the traditional button-mashing. Having that brand new experience made EVERYONE go get one. Me, You and basically everyone in the world. The WiiU is not is a slight nudge over what we already have. It will have the same mediocre success as the 3ds.
As far as the Vita, I am completely interested in this beautiful hardware. It's amazing if you ask me. Don't blame sony for your experience thus far, blame the third-party developers who aren't creating the ace titles you guys are begging for. Only thing you can really knock sony for is price. Because, they delivered on hardware...and while there's a lot to complain about: the memory card, etc. They did their part in a nutshell. I'm interested in buying one and as soon as the price drops one or two times, I'm going to get one.
ps. this site needs a major cosmetic overhaul. Honestly, it's just a lot of clutter to me and it makes me want to avoid certain parts of your website that i know i'd appreciate using. I'm not an idiot i can figure it out. But, i think i live in a day and age of apple products that now i'm spoiled. Please look into it and here's a little something for you cheapy, it's a steve jobs quote that i love "simplicity is the ultimate sophistication" which he said back in 1980. Pretty crazy he lived by that all these years. Keep it simple guys. Love you so much, you're still the only video game website i even bother with.