What's new on the app stores on Tuesday 13 September 2011

Seemingly only available in the US for now, playlist site Songza has an iPhone and Android app offering streaming music for free - via playlists of songs created on the site by its users.

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The latest BlackBerry app to be built on RIM's BBM technology is Moobile's Real Contact, which alerts people when they're closer than 400 metres to one of their BBM contacts. The pitch: "Never lose your pal again on a concert or split up in a mall..."