MetroPCS today indicated that its joyn service can now be used on a wider range of its Android handsets. The service initially launched on the Samsung Galaxy Attain 4G. It now also works on the Samsung Galaxy S III and S Lightray 4G; the LG Connect 4G and Motion 4G; the ZTE Anthem 4G; and the Coolpad Quattro 4G. Joyn is a standards-based Android application that collects and merges messaging services, such as IM and SMS. The app lets users conduct threaded text conversations and supports presence, which lets users know when their friends are available. It also makes it easier to share photo and video content when the user is on an active phone call (this is traditionally not possible on CDMA-based devices). Last, it lets MetroPCS customers make voice and video calls to other joyn users via Wi-Fi.

Source: Phonescoop