Tapbots has stopped public testing of the alpha version of Tweetbot for Mac and pulled the code offline, according to the developer's blog. The company blames a recent change to the official Twitter API, which restricts the number of "tokens" an app can have, in turn limiting the number of customers an app can support without Twitter's approval. The end of the alpha program is an attempt by Tapbots to keep the maximum number of copies for sale once the app is finished.
