As Twitter is becoming the latest cool way of keeping touch with friends and generally yapping or moaning about stuff, I decided to take a look at a few desktop client applications for Twitter. I looked at four - two on the Mac and two on Windows: TwitterPost, Twitterrific, VisualTwit and Twitteroo. I thought Twitterrific on the Mac was the nicest of them all:

Twitteroo was the best Windows one I found: