Foursquare released a new version of its iOS client on Tuesday with a number of enhancements. Among the changes are a new Check In button that will allow users to check into locations faster, a new Explore tab that will help users find local specials easier, and a faster check-in process. We gave the update a quick whirl earlier today and definitely appreciate the centralized Check In button, which, after a quick tap, brings up all of the nearby places. The user interface also feels noticeably quicker. In other news, foursquare also announced that there are now 10,000,000 people using its service. For a taste of foursquare 3.2 hit up the iTunes App Store now.