The interface looks somewhat similar to Vista Media Center in its basic structure, but with more emphasis on visuals. Also, a new "party" mode will allow an 8 person chat to be carried out regardless of where you are within the Xbox Live community. This party can also move as a group through different games in XBLA and their new Primetime feature, which has multiplayer-oriented party games. The update is expected to come in the fall. [Microsoft E3 Liveblog]
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