About the keypad
The make-or-break factor in this Msngr-kit is obviously the keypad. Surely it comes with the headset, but who XO owner wouldn't have one? Maybe you can sell it to someone who breaken his...

Anyway, the keypad then:
It fits perfectly like a glove ;) , the buttons are of good design (size, material etc) and the typing is just SO much faster with the "keyboard".

The backlights are also a great idea because often you play under not-so-well-lit circumstances.

If you have a slight tendency to tease your friends with txt messages, then this is a must buy.