AntiDrama...
I developed
www.bodygain.com a few years ago and it allows you to track your diet / workout, a lot like FitDay.
We actually just began to completely redevelop it however at a separate test URL. It's going to be *very* cool and it will make it quick and easy for users to add workout / diet entries. We're using a combination of DHTML/Ajax for the form entries.
Then we're going to use a lot of different types of flash charts... there should be dozens of different types of charts to analyze every aspect of the workouts and diets. There will also be a customizable chart section where you can build your own charts.
We're also creating it so that you can "adopt" other people's workout plans / diet plans and all that crazy stuff. Going to be really cool.
So I wouldn't suggest to start using bodygain.com now because that's the old version and it will be obsolete. My aim is dreamache, and my icq 153785636. I'll let you know when it's done, hoping to have it done within 2 months at the most.