How about a tennis racket string tension Iphone app?

Are you ever left wondering what tension would be best based on your game and racket, this Iphone app might be the ticket.  I have not tested it and cannot give a recommendation, but I thought that I would mention it here.  It is available in the Itune store for .99 cents.  It was released July, 2010.  This might just be for you if you have a difficult time trying to figure out your tension.