Do you have some free time on your hands? If so check out the iPhone games from http://macmost.com/iphonegames.
Some of the games listed are:
Solitaire: Classic card solitaire with scoring.
Minesweeper: Another classic puzzle game.
Match Three: The classic casual game
Collapsing Blocks: Falling block puzzle game
Sudoku: Classic brain puzzle
iPhone Assassin:

Uploaded with Skitch!

iPhone Games