Twitterrific

Twitterrific: "is a fun application that lets you both read and publish posts or 'tweets' to the Twitter community website."

I was always surprised by how much I saw this client used for twitter. Guess they didn't like the popularity because they started charging $15 for an ad less version when there are a plenty of competitors.

I'm quite happy with some combination of web, sms,
Spaz, and Flock ...