Ok, let's be more clear. It's not being used in unique ways to do things that couldn't be done without it. It's a good additive to games, but it does nothing exceptionally special in most cases.
For example, a game where one player does one thing completely different from the others on the gamepad in a sort of vs mode. Like the sort of tower defense setup they had with that Project Guard game at E3: you could have one player control the fortress and its contraptions on the gamepad and the others try to navigate it.
Kirby is a good use as it has asymmetrical co-op.
Games with input setups too complicated for a traditional controler would be a nice use. For example, mech games with complex controls. Most controllers lack the needed number of inputs (having 14 buttons and 2 analogue sticks). The Gamepad doesn't have that issue because of the touch screen.
An Etrian Odyssey game would be a great game that would need the gamepad.
Those are just some ideas of better, more unique uses.







