You are near the South Pole. Your penguins jump across ice floes, trying to block your opponent and hunt as much fish as possible. The player with the most fish wins. Play against computer opponents, multiplayer on one machine or online using XBox LIVE.
There are two reviews for the game:
Indie Gamer Chick
Xboxdynasty [german]
And here are video links:
Demo Friend [YouTube]
Offical Gameplay Trailer [YouTube]
Enjoy it and if you become interested you can buy the game on Xbox LIVE for only 240 Microsoft Points, which is around three dollars.