vTrack is your weight-loss Victory Tracker!
This is a nice way to log your daily exercise and weight-loss. The Graph and History functions show your progress.
I've found this to be a highly motivational tool. I want to keep exercising everyday so I can put in a new entry! I think this will be useful to others, so I'm making it freely available here.
Known Issues:
* The graph will look odd for people under 100lbs or over 280lbs, or anyone using the metric system.
* Slight layout weirdness in Gingerbread and later, but it is still functional. Looks great on Froyo (2.2) and earlier.