GameSpot said:While Microsoft's Xbox 360 Spring Update will integrate Windows Live Messenger into the system's dashboard for cross-platform chatting, the machine's text-window interface for standard control pads makes lengthy conversations a chore.
To ease the task of typing in messages without the aid of a full-sized keyboard, Microsoft today announced a new text input device for the Xbox 360 controller. The attachment snaps onto the bottom of the controller through the headset jack and features a QWERTY-style key layout with 47 keys.
The keyboard attachment has not been priced or even named yet, but it is expected to see release this summer.
http://uk.gamespot.com/news/6168676.html?action=convert&om_clk=latestnews&tag=latestnews;title;2
it would make it more comfortable than to change keyboard to controller all the time