People complaining about gimmicks, for the love of God, shut the hell up. EVERYTHING in the world started off as a gimmick. Every new feature ever invented was a goddamned gimmick. When a new feature is added, it becomes a gimmick, until it becomes a common feature in all similar products. You wanna know what was a gimmick? Online play. But that sure turned out pretty well. You want a 'traditional' controller? Go grab an NES controller, and be satisfied with your 4 buttons and a d-pad. Doesn't get any more traditional than that.
Everyone console generation changed the controllers in some way. The transition from NES System to SNES added more buttons. The transition from SNES to N64/Playstation added Analog Sticks and even more buttons. The transition from N64/Playstation to Gamecube/PS2/XBox added rumble, and firmly solidified the two-analog stick method that hadn't yet been fully accepted as a result of the N64 only having one. Then the shift to PS3/360/Wii fully integrated wireless, motion controls, and online.
We are very very quickly approaching the limits of what can be achieved from simply making the systems beefier and more powerful. Hell, that's one of the reasons why this console cycle has gone on so much longer than usual. Graphics quality can only improve so much before the improvements become undetectable to the human eye. Each system has, and will continue to need to add something new to the table when the next incarnation of it launches in order to justify purchasing it. When the system's power no longer serves that purpose, what will they do to make you buy the system? What will be the purpose to upgrading if everything stagnates and nothing ever changes.
New innovations and 'gimmicks' NEED to happen, because without them, nothing will ever actually get better. You can't keep adding buttons forever, otherwise you might as well be playing with a keyboard (which PC gamers obviously do already). And sure, not every 'gimmick' is going to turn out right. History is filled with failed attempts, but without those attempts, we'd never get the gimmicks that succeeded. The very existence of the analog stick was one such gimmick originally, and it was obviously successful. Would you go back to the days when the D-pad was all we had for movement? No? Okay, then shut the hell up about how you don't want gimmicks. You do want them, you're just too stubborn to realize it. Maybe this particular gimmick isn't one that you want, and you know what, that's fine. Comment on how you don't want this particular gimmick, how you feel a touch screen won't be appropriate or helpful (even though both handheld systems and iPhones and iPads have proven you wrong), but say one word about how 'gimmicks' are bad, and you will brand yourself as an idiot with no foresight and no understanding of how the world actually works.
A lot of other things being stated are pretty stupid too. Like the argument that the WiiU's game line up isn't relevant, because all the games announced will have already been out for other systems for months prior to it's launch. This is true, they will be, but that's not the information you're supposed to be taking away. What you're missing is what this line-up of games means, and what it means, is that Nintendo finally has proper 3rd party support. They have real 3rd party games, that people will actually want, that aren't just shovelware like the Wii currently has. Furthermore, the games announced for it, pretty much consist of all the big name AAA titles that are announced for other systems. How many big, triple-A, non-exclusive games can you list off that now haven't been announced as coming out for the WiiU? What this means is that future AAA titles that haven't been announced yet will also end up coming out for the WiiU. Yes, the WiiU will launch with months old games, but this means that it will also launch with brand new games that will just be coming out for the PS3 and the 360 at the same time, and they just haven't been announced yet due to how far away the date is.
Also stupid is this argument that no one would ever buy a WiiU because they're too invested in their PS3/360 is also retarded. Hardcore Nintendo fans will buy the WiiU. The very idea of new Mario and Zelda games with fantastic graphics in 1080P and a more classic control scheme will prove an effective lure to even casual Nintendo fans (by casual Nintendo fans, I'm referring to PS3/360 owners who have a casual interest in Nintendo and their games, not people who are actually so-called 'casual' gamers). The so-called 'casual' gamers who were enticed to buy a Wii, will quite likely buy a WiiU based on a combination of brand recognition, and the controller's similarity to a recognizable, easy to understand device (iPad). Tech obsessed people will buy it based ont he fact that it will be the most powerful system, and they always buy whatever the shiny new piece of tech is. Brand new players who don't have any system yet (yes, these exist, I work at an EBGames, I see these people everyday), will consider it since it'll have the same games the PS3 and 360 have, and then some. And people who own multiple consoles will probably pick it up too, and these people make up a surprisingly large amount of the gaming population. Not as many people have only one system as the fanboys for each system would like you to believe. And lastly, who are these people who are 'too invested in their PS3/360'? What does that even mean? If you're somehow 'too invested' in a console to get a new one, then what'll you do when the PS4/XBox 720 come out? Not gonna get them either? The whole idea is stupid. I have a PS3, but I'm sure as hell not particularly invested in it. It has games that I want, and like any self-respecting gamer, that's all that matters. The WiiU already has games that I want, and the extra desireable first party titles haven't even been announced yet, so I'll be getting that too. Hell, I might even wait until the WiiU comes out to pick up some of those games that will have already been out on other consoles for months, like Arkham City, since knowing how the game industry works, those versions will probably come with all the same stuff plus some extra features.
In summary, if you don't like the way the WiiU works, that's fine, but don't express your hate in a way that makes you come off looking like a blindly-Nintendo-hating idiot.
As an aside, my own opinion of the system = cautious enthusiasm. I'm really excited for it, but oh God, that controller looks awkward as all hell. I've read 3 different hands-on reports, one saying that it felt as awkward as it looks, and 2 saying that it felt surprisingly good in their hands. One went so far as to say it kinda felt like using a Gamecube controller somehow. As the Gamecube was my favourite controller of any console generation, this gives me hope.