Where can I find mobile software for Fischer random chess? Fischer had a chess variation (chess960) but I cannot find any mobile app to play it. 

Does anyone knows where I can get the best software (if possible free or cheap) to play it?
There are a number of websites and tools listed on the Chess960 wikipedia page. Scroll to the bottom for the complete list. These should all be playable on your mobile device. 


http://en.lichess.org/
http://www.chesshotel.com/play-random-chess.php
http://www.mychess.de/