NEW YORK ( TheStreet) - Microsoft ( MSFT) has sold 8 million Kinect devices, ahead of the 5 million the company targeted, CEO Steve Ballmer announced Wednesday night at the Consumer Electronics Show.

The company plans to introduce an Avatar Kinect product that lets friends connect virtually through a social network.

Shares of Microsoft rose 0.25% in pre-market trading Thursday to $28.07.

AT&T ( T) plans to add 20 more 4G devices to its lineup in 2011, the company said at CES. Devices will include those from HTC, Motorola ( MMI) and Samsung, with more than a dozen offerings running Google's ( GOOG) Android platform.

Shares of AT&T fell 0.83% to $29.73.

Research in Motion ( RIMM) previewed announced that it will be previewing its highly anticipated PlayBook tablet at CES beginning Thursday. The tablet, geared towards business users, features mult-tasking and dual HD cameras.

Shares of RIM were down 1.8% to $60.79.

Motorola Mobility Holdings unveiled its first tablet at CES on Wednesday, called Xoom, which runs on Honeycomb, the newest version of Google's Android platform. Motorola also announced a smartphone called the Droid Bionic which will run on Verizon's ( VZ) 4G network.

Shares of Motorola were up nearly 2% in pre-market trading to $32.85 in its third day of trading.

While Apple ( AAPL) was conspicuously absent from CES, the company was not without announcements, launching its Mac App store Thursday morning. The store includes more than 1,000 free and paid apps.

Shares of Apple rose 0.36% to $335.20.

--Written by Olivia Oran in New York.

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