Xbox 360 thumb keyboard addon official

There have been rumors of an Xbox keyboard, with confirmation today. Microsoft will be launching a thumb keyboard addon, which plugs into the audio/data port of your controller. The features in short are:

• The thumb keyboard plugs into the headphone / data jack on the bottom of the controller. It comes bundled with its own headset, since it doesn't pass the signal through, and cannot work with current peripherals.
• The keyboard is backlit; the chat bubble icon in the photos will be an MSN icon.
• It will be released in the summer. No word on how much, though.
• We got a chance to check it out. The tactility is nice, but it's a bit heavy with all the rest of the weight of the 360 controller.