What are some really cool games you play with your fingers?

I used to play FFR (flash flash revolution) all the time. Somethings seems to have happened making it impossible to play. I would really like other games (or similar ones) to play!|||buy an iphone,|||Just your fingers or can a PSP be a part of the action? :P|||Runescape|||playstation or computer is a great example for what you want to play with your finger