TweetBot for Mac: How Can a Twitter Client Possibly Be Worth $20?

TweetBot, the hugely popular iOS Twitter client, finally comes in a finished desktop version available in the Mac App Store for 20 bucks. No joke. It appears to be a nicely polished piece of software with some smart features, but is there any way to justify that price when you can just use Twitter's app for free? » 10/18/12 1:19pm 10/18/12 1:19pm