The iPad can do a lot of things, but it can do a hell of a lot more things if you Jailbreak it. Case in point is this iPad running a SNES emulator and being controlled by a Wiimote.
You’ll first need to install version 7.0 of snes4iphone, which provides support for the WiiMote via BTStack. The jailbroken app can be purchased for US$5.99 at the Cydia store. As jailbreaking is required to install Cydia and non-App store apps, you’ll first need to jailbreak your iPad.