Google have updated their Google Maps Android app, to version 5.1.0. The new update brings the Google Latitude service to the table, Googles answer to Foursquare. Much like Foursquare, Latitude shows were your friends currently are. Latitude also has an integrated check-in feature, so you can check in at your favourite place and show your friends where you are eating or watching a film. When users check-in somewhere Latitude works together with Places to show you the Places page of where you checked in, so you can read reviews about it. You can also choose to automatically check-in at your favourite places. Also when leaving the bar or restaurant you checked in at, Google Latitude will automatically check you out. Google have also released a short video which is a good introduction to their new Google Latitude service (see below).