Jailbreaking an iPhone isn't as necessary as it once was, but hey, some people still like to do it. And those people can now play some N64 on their iPhones.
By all accounts it's a bit of a mess but then, that's what you get when you muck around with this kind of business. There's sloppy framerates and poor controls all over the shop.
On the bright side, it supports the...Wii Remote?