His slider, checking in around 80mph, dipped sharply enough to get the Yankees to chase it all night.
The early-adopters would have booted it up for the first time and not seen any friends checking in around them and would have wondered what the hell the app was good for?
Earlier this month, Foursquare boasted of more than 381 million check-ins around the world in 2010.
(Though don't use the word "check-in" around Cahan, he hates it).
For example, Miso lets you check-in around movie, television, and Internet video content.
SimpleGeo, one company that has had early access to Foursquare's firehose, built Vicarious.ly to visualize real-time check-ins around Austin.
Karuishi visits the cafe at least twice a week, usually checking in at around eight, as does fellow feline fancier Ayumi Sekigushi.
Services that help kids report their location, perhaps by "checking in" as they move around, calm anxious grown-ups with less annoyance for the young.
As users continue checking in to venues around the city, conversations amongst their social networks now include recommendations for restaurants, bars and movies, a trend that both local and national companies are beginning to harness.
"I was in Amsterdam, just wandering around, and checking in to Foursquare, listening to music, taking pictures and sending all of this to Twitter," he explained.
