But lots of people do, apparently. They enjoy filling their twitter feeds with things like, "I am now the mayor of Taco Bell!" and, "I'm at Pet Food Plaza at 123 Main Street." Well, okay, good for you, Mayor!
So it's good - for them - that there's a Foursquare app for BlackBerry. And apparently it's a pretty good app.
You go read Taylor's review of the app over at BBerryDog. And I'll go find a kickball and some chalk to draw up a real Foursquare app - er, court - of my own.