The company behind the GyPSii social network has announced that its "Tweetsii" Twitter client is getting both an upgrade and a release on Android. 

The app, which is now available on both the iPhone and Android, integrates with the Foursquare...

GyPSii has announced the launch of Tweetsii - an iPhone app that lets you see who's tweeting nearby, and also access information on what there is to see and do in any particular area.

Tweetsii hooks into other location-based networks like Foursquare...