LostWinds isn't a new game. It's been around for years, first on the Wii, then on iOS devices. I'm mentioning it again and now, though, because for a limited time it's suddenly free.
This isn't just one of the best platformers on iOS, it's quietly one of the best platformers this hardware generation, combining a gorgeous art style with some fancy motion controls (now transformed into "swiping and tapping" controls).
The iOS version isn't as precise as the Wii one in terms of character movement, relying on an adventure game-style pointer, but it still works, activating your powers with swipes is super easy and with retina visuals it looks great.
Lostwinds [Apple App Store]