The iPhone isn't the best cell phone. It is, however, one of the best platforms ever devised for mobile applications and -- especially -- gaming. So much so, no other mobile computing systm comes close, especially when you take Apple's App Store and over-the-air delivery system into consideration. Slate's Farhad Manjoo recently posted an article highlighting some of iPhone games he finds most addictive. Not only are these apps adddictive, they're downright cheap -- almost a steal, really. There's Flight Control from ($.99), iShoot ($2.99), Fieldrunners ($2.99), and Strategery ($1.99) to name but a few. What titles do you find the most addictive?