Please do an iphone app!!! I have yet to find an app in the entire app catalog that will take my weight goal (more than 2 lbs per week) + ending goal date and calculate how much I need to lose per week to achieve this goal. It seems like such a basic thing but no one provides this tracking calculation.
In addition to having all the great features that the fitday site provides, this app would be amazing. I would be willing to pay a premium for it. Please fitday, make it happen!