Couch to 5K and Couch to 10K are iPhone apps by Lucius Kwok that help you work out and get into shape.
Couch to 5k is an app for your iPhone or iPod touch that will help you get into shape using a 3-days-a-week workout program spanning 9 weeks culminating in your ability to run a full 5 km or 3.1 miles.
[via Adam Lisagor]
