Tapbots has released an update to Tweetbot adding Retina Display graphics in preparation for the impending release of the new third-generation iPad as well as live streaming and several other smaller improvements. Tweetbot 2.1 now allows users to optionally stream tweets live over Wi-Fi instead of relying on a manual or timed refresh; the new tweet notification also now only sounds for mentions, direct messages, and new tweets that appear following…
