Virtual Trainer Fitness iPhone App

Lose weight, bulk up and perfect your form with the Virtual Trainer app. It has a database of more than 300 exercises and warm-ups with step-by-step pictures; more complicated exercises are accompanied by how-to videos. You can also use Virtual Trainer to help tone specific problem areas like your abs, arms, back or chest. The app will log your workouts and keep track of maximum weights and repetitions; it even lets you add your own custom exercises to the log. The one big complaint about the app is that it's pretty slow over a 3G network.