Twitter Adds Places To Its Geo-Tweets, Just Don’t Call It A Check-In
techcrunch.com
techcrunch.com
The user still does their usual check-in wherever.. but if they’re in close proximity to Pub XYZ who has wings on special, an amber alert of sorts would start beaming on their device to let them know of the special.
Therefore entice more check-in and revenue opportunity.
I’ve had this idea in my head for a while.
http://foursquare.com/businesses/ (large list of businesses and some info on the program)
If you check in near a special, it'll tell you - also, if you check in near where your friend has left a 'tip', it will tell you as well.
I don't know if Gowalla has any similar functionality.