UK internet usage

Tech news from around the web:

Google+ is now open to the public, the Los Angeles Times reports. After 12 weeks of field trials, the social network is still technically in a ‘beta stage’ however, with nine new features being added this week and more planned for the future.

Location-based app Foursquare has just clocked up a billion check-ins, says TechCrunch. On top of this, Foursquare has launched a new version of its mobile app for the iPhone and Android handsets.