Swarm for Windows Phone has been updated with several new features including the ability to search your check-in history from within the app. The update, version 22.214.171.124 for those keeping score, is available now in the Windows Phone store online or through the Store app on your phone.
If you aren’t familiar with it, Swarm is the check-in and meet up app from Foursquare. This is the dedicated app for such activities after Foursquare separated it from the original Foursquare app which is more about localized content now. I’m personally not a big fan of the separated apps but I embraced the horror a few months back and have moved along.