Google rolls out Android Jelly Bean to AT&T, T-Mobile Galaxy Nexus phones


Google (NASDAQ:GOOG) is now rolling out its Android 4.1 mobile operating system update to select devices, beginning with Samsung Electronics' Galaxy Nexus smartphone.

Google is initially pushing Android 4.1 (a.k.a. Jelly Bean) to HSPA+ Galaxy Nexus devices optimized for the AT&T Mobility (NYSE:T) and T-Mobile USA networks, but vows all Galaxy Nexus handsets will receive the update in the near future. Also in line to upgrade: Samsung's Nexus S and Motorola Xoom as well as the Nexus 7 tablet, jointly developed by Google and Asus, which will ship with Jelly Bean later this month.

Google launched Android Jelly Bean in June at its annual I/O developer conference. The update promises a smoother and more responsive UI across the system, highlighted by triple buffering in the graphics pipeline for more consistent rendering as well as synchronized touch to reduce latency. Jelly Bean also brings a revamped homescreen that automatically adapts to fit content and a predictive keyboard along with Google Now, which promises personalized information like local weather and traffic updates.

In addition to the Galaxy Nexus and Nexus S, Samsung has confirmed it plans to upgrade a number of other devices to run Android Jelly Bean, promising an official announcement soon. Many of Samsung's biggest rivals have not yet made their upgrade plans clear, however.

Google released Android Jelly Bean to the Android Open Source Project on Monday, making the underlying source code available for third-party modification. AOSP technical lead Jean-Baptiste Queru announced the release in a post to the Android Building group--asked about the likelihood that older Android devices might upgrade to Android Jelly Bean, Queru replied "That's fundamentally a question for the carriers and OEMs who support those devices, so I can't answer it."

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