Tweetbot is arguably the best Twitter experience you can get on an iPhone, iPod touch, or iPad, and now the folks at Tapbots have released Tweetbot for Mac. It's a clean, polished Twitter experience that outshines both official offerings from Twitter itself--Twitter for Mac and Tweetbot. iCloud and Notification Center support are on board, allowing you to sync preferences and read items across devices. You can pick up Tweetbot for Mac now for $19.99 in the Mac App Store. Why so much? Well, due to Twitter's new, strict API rules, developers like Tapbots only have a limited number of user tokens that its apps can use. So if you wanna use Tweetbot, you're gonna have to grab it soon, because once the API tokens are gone, they're gone.