The interesting part is that the new version is either paid-for ($15) or advertising-supported. Personally, I paid and was happy too. Let's face it - if you're an indie Mac developer, Twitter is like a year round WWDC doughnut stand. It's where I hang out with the other indies for the other fifty-one weeks of the year. If an easy interface to that world isn't worth $15 to me, then I've got some messed up priorities.
As Twitterrific goes from free to 'monetized', I'm having flashbacks to the release of FlickrExport 2. The transition from free to not-free is never easy, but good software will usually make that leap. There's only so much work people can do for the love of it. I don't know many Mac developers who are independently wealthy and are looking for ways to fill their time. At some point, your efforts have to start paying for themselves so you can have a life too.
Craig, all the best with Twitterrific 3. People say this phrase to me all the time about Flickr and FlickrExport: "without it I wouldn't be using the service". The same is true for Twitterific, Twitter and me.