Google Maps for Android recently received an update introducing multiple new social features for the mobile mapping service. This new update brings some minor performance enhancements like ability to post reviews of places to Twitter, Google Latitude friends can now be pinged to request check-ins where you would like to be. Google Map v5.2 also allows user to explore hotspots in your area.
Google stated on its official Google Mobile Blog that both users must be on version 5.2 to benefit from them. If in case you need inspiration for your next destination then you can also search for a place to check-in from latitude.