What do you call an interview on Twitter?

A "Twitterview", of course, and I will be a twitterviewee on Thursday 13 January (time to be announced, but probably mid-evening GMT).  Prolific writer and web maven Emlyn Chand will be asking the questions, and I'll be responding in 140 characters or fewer (tough for a fantasy writer!).  Search #emlyn on Twitter to find the twitterview and ask questions of your own.  

I've no idea quite how this work in practice but it promises to be a lively, if necessarily terse, occasion!