Iphone assistance applications

[MotRod]

Iphone application meant to monitor diet habits and provide geographically / proximity motivations to user stimulating healthy diet choices.

e.g : proximity to McDonald's raises reinforcement of healthy eating reminders or prompts ads for produce at nearest cub foods.
If user received discount on healthy produce or home cooked food alternatives would this prompt purchase elsewhere and healthier living.
Sponsored by grocery stores.

Could this also be applied by restructuring discounts on a per user basis. i.e. could cub foods provide individual coupons tailored to the user depending on diet habits?
This data could be easily gathered by grocery retailers and distributed to application subscribers.

[MotRod]

One feature could be estimates for time to prepare and total cost vs. calorie counters.

e.g. time to mcdonalds 10 minutes cost 6$, calories 1000, fat 30g
time to cub, 10 min, cost 5$, time to prepare, 15 minutes, calories, 500, fat 5g

From this data can also create key ratio motivators.
Time/Fat
Time/Money
Time/Caolries..

etc..

Could also setup network/community of recipe providers to allow for easy to prepare food options and recommendations to be used in encouragement toward healthy choices.