iHoth? Battle of Hoth for iPhone

IGN gives the game a 7.4 and says it plays like most Tower Defender type games but their is a cool ability to use a shovel to dig in and stay on the defensive.

Link to game:

http://www.starwars.com/games/videogames/thq_battleforhoth/index.html

Link to review:
http://wireless.ign.com/articles/110/1106697p1.html