DeLights brings an extension to the classic game (Lights Out) to the PlayBook.
The game is free but it gives you the option to purchase the solver when the puzzles drive you nuts and make you feel like practicing board-breaking using the PlayBook.:D
Attention math teachers/professors:
Since the puzzles are solvable using linear algebra, DeLights is a must-have app if you want to liven up your linear algebra classes! :)