Virtual Guitar?
 

Have you guys heard about the Six String application? What do you guy's think about it? I am really feeling the app since I have always wanted to play the guitar and now I can Its not easy either like Tap Tap Revenge that just passes you for trying but this really gives you a challenge which is fun! Practice makes perfect! haha You can also play songs from artists like Bon Jovi, Papa Roach and more!
I highly recommend http://bit.ly/bLJxVA