I've just written a short story called 'Archipelago' for Edinburgh Book Festival for a project called 'Elsewhere'. They invited me to do a twitter q and a session today, and there's a transcript of the whole event online here:
http://edbookfest.blogspot.com/2011/04/transcript-of-todays-twitter-q-with.html
It was great fun, some deep questions, some silly ones, some that really stumped me, but the most interesting thing is that I find these events more nerve-wracking than 'real' ones, for some odd reason. Part of it is that you don't know who, or how many people, you're talking to, unlike a real event.
But it was fun and it's good to think you can communicate with people around the world all at once.