It's up on the app store now.
Feels like a medieval version of Punch-Out!!. You progress towards and up a castle, fighting enemies along the way in one-on-one bouts. Attacks are done by swiping the screen in different directions, and you can dodge attacks left and right, block, and parry by swiping in the direction of oncoming attacks at the right time. The simplistic game play works pretty well and allows you to concentrate on the battles rather than fiddling with shitty on-screen virtual d-pads and buttons. I'm impressed...was expecting nothing more than iPhone eye-candy.