Ideas that leverage geofencing, which was emerging at the time.read more
For the store you walk into, list the most popular products at that store. New products in various categories.
If you're near a bus or bus stop, provide bus routes. (something we wouldn't really be interested in doing)
If you are about to walk by a high rated restaurant, send them info reviews price stuff.
Drive by a gas station that's the cheapest in an area.
Idea that we couldn't do: based on emails, figure out what the person is looking to buy and then when they drive by a place that offers it for a really low price, you send them a push.
Most mentioned food at a restaurant (hard) when you first walk in there. (run various other algorithms on reviews to gather info)
Allow user to fill out a profile to allow for better delivered information. Which food they like most. What category products they buy.
Let's you know if you drive by a parking garage
Unrelated: because phones know if driving, app that disables texting while driving.