I think I've found my new favorite app.
DoGood from Mobil33t is a simple little app, well designed, and single purpose. DoGood presents you with a single task every day, a task that does a little bit of good for yourself or someone else.
Once you complete the task you can post a comment about what you did or the task itself. You can also read what other people have posted. Also available is an archive of previous task comments. Once you do the daily task you can post it to Twitter or Facebook via Safari Mobile.
See, I told you it was simple.
The app was developed by 3 Univerisity of Michigan students and is the first project of the company they started to develop iPhone apps, Mobil33t.
The app is free, so why not download it and do a little good?