I love it, and this one they hit it out of the park. Only minor fuss I have is that it will not be analog, but as one commenter of this article said, since Analog triggers aren't super cumfy, they could have made it PS2-like pressure sensitive. But oh well.
http://www.screwattack.com/news/wii-u-pro-controllerstill-has-digital-triggers

Why they don't think about things like this on their own not only beats me, but aggravates me honestly. But at least it's already a huge leap in the right direction.

Huh?

It has a built in battery, hence the usb port and power button.

Really? I have to disagree. I remember playing MoH Heroes 2 online, and I would get so angry when my character would start randomly spinning. The only thing I could see being good about it is not having to move your character's view to shoot someone, but even then I don't see how helpful that would be. And melees generally suck if they make you thrust the controller forward.

When done right, pointer controls are vastly superior in speed and accuracy, compared to dual analog setups. That's not bias or opinion but fact. However, it's up to the devs to create a quality product with controls that have been crafted with care and attention. It's easy to put out a rushed, lazy effort with controls that are buggy, unresponsive, or otherwise flawed.

The games TWRoO mentioned all have silky smooth pointer controls that work flawlessly, in my experience. Having played those, and going back to a dual-analog control scheme is... awkward. And annoying.

Also, I agree about the melee attacks, so far they have sort of sucked in Wii shooters, a lot of the time. But I wasn't talking about melee moves, but pointer controls (bytheway, it seems those melee moves have made it into ZombiU, using the gamepad, lol).

Sounds like some interference. I don't know about MoH Heroes 2, but play conduit oder mw3 on Wii and I think you will see why some people prefer pointer controls for FPS. Especially MW3 is a good example. You can play it with dual analog and wiimote and wiimote players just have the advantage. You can turn faster and aim faster. Classic Controller players get heavy auto aim support from the system just to stand a chance. With Wiimote+ the gap will even be bigger.

I saw that, I think in the demo. WTH were they thinking? They have clickable sticks, make use of them! Or if they could have at least given you the option (say, if you have a samurai sword) to attack with the touch screen in specific ways such as intentionally going to slice the legs off or decapitate the zombie. So much lost potential.

Also, the guy said it is unconfirmed as to whether the controllers will use built in battery packs, but he later noted that you could charge through the mini usb...which is it? Pretty important you know...

Does this controller have force feedback? Not sure if we got any word on that yet.

Lol, it's weird Nintendo haven't announced a wrist strap for the WiiU gamepad yet. I can see a lot of broken TVs in the future.

Also, I'm pretty sure the Pro controller will use built-in rechargeable batteries, this is 2012, I mean come on. That mini USB port at the top seems like a dead giveaway. Also, rumble seems like a given at this point.

Well I guess I could be wrong, but the controller itself is rather thin at the back, ie because it's a display controller and has to be tethered anyway they just power it directly (the cable going into the back is where the battery pack will be)