and you were told to make a new IP that integrated both the balance board and wiimote (nunchuck and motionplus can also be used) seamlessly, what would you create?
Me?
I'd create something like Mirror's Edge, in that it's a FPA but with one real difference; it's on rails. It could be played standing or sitting (it'll be a much more comprehensive game if you stood up though). To move you would "walk" on the board; any faster than the leisurely walk and you'd start to jog, then run and so forth. Jumping would require a heavy two foot press (or in reality a jump) on the board. The nunchuck would handle your agility. Using the analog stick, players could dive or slide by pressing forward and roll/dive left or right by pressing the corresponding direction. Pressing back will initiate a "brake" and this is the only way to slow down (it's purpose being so that you aren't literally running all the damn time).
The game would be level based and play like a 3D JungleBeat or the good parts of Prince of Persia, where the whole point is to play as fast and as fluid as possible while kicking ass. At the beginning of each level, players would be given an item that would literally be the wiimote. There is no multiple item system in this game. The item can range from a rod to pull vault with, to throwing out a telescoping metal foil wing to cloudsurf ala "Tailspin." After a brief tutorial of what you received and some of it's uses, no further help will be given, having you use your wits to figure what the hell your suppose to do with the item in question, other than the obvious.
Now, that said, it is possible to pick up other items and use it in conjunction with the item you were given. For instance, you could use the rod in a lever situation, or more interestingly, to bat away incoming attacks to create new passage ways.
This game would start out crazy then head into absolutely ridiculous. Every level would be something new; instructing you to turn your balance board side ways because it's a level where your snowboarding, and your item for the level is a parachute.
Enemies? There are no enemies, just environmental danger.
I could post a quick description of a level, but I feel I've said enough. You guys got the idea.
Your ideas?