[quote name='crunchewy']Facebook is pretty craptastic on the 360. I really can't imagine ever using it. Twitter isn't any better. Maybe they will make them better later on, but without a web browser it's never going to be terribly useful.
Having said that, the Messenger Kit is handy for entering info on the 360. However, note that it also adds a fair amount of bulk and weight to the 360 controller. I don't like to keep it connected as a result. Still, I'm glad I have one for the occasions when I want to enter info. Really I'd much rather they just allow you to hook a USB (or wireless preferably) keyboard to the 360 for occasions when you want to type. Actually, I don't know if that is possible or not - perhaps it is?
Oh, and it's white, so if you've got some other color controller that may or may not bother you.[/QUOTE]
I use a pretty standard Logitech USB keyboard for entering stuff like activation codes, or for just replaying to friends messages.