Never used it!
It seems to be very popular with the section of the community who stare blankly into cellphone screens whilst performing rapid digital gymnastics – usually walking into others on pavements and other public places whilst so doing. Not all of the time, of course. They will also occasionally talk into their phone, perhaps announcing loudly to the recipient, (and everyone else in at least two carriages), “I’m on the train”, and other riveting grains of banality.
I presume Facebook is similar to Twitter and My Space.
Any truth in the rumour that they might be merging into one company – MyTwitFace?
Casper