Cool +1 LBS service - when you sign up to this mass transit service and link it to your 4sq acct, you get upcoming train times when you check in at locations nearby.
got this from Nicola-
product check-in social networking site. users and brands have profile page. users rate products and leave comments, share experiences.
dont really understand the LBS part though
Broadcastr launching on Android; mentioned this startup in the LBS report - article alludes to sponsored stories being a likelihood (speculation, but I buy it).
Shopster that uses the geo-location services in the iPhone (or iPad or iPod touch) to not only keep track of where you frequently buy your groceries, but what you buy at which store. Then it can notify you when you're near those locations and what you might possibly need to run in and grab.