looking very interesting.

I've had a few trouble with blowing my API limit -- maybe as I was runnign multiple clients. What's the impact of this client on API calls? (I have 700 contacts)

A useful feature might be the ability to:
- somehow not show every contact as online just because a twitter address is configured (I realise this could be tricky as they are kind-of online. Maybe "idle/away" is more true.
- just subscribe to a subset of those you follow, perhaps by use of a twitter list(s)