Twitter's free client for Mac has received its first major update today, giving users the ability to view multiple timelines at once. Other improvements include easier navigation and auto-completion of both hashtags and usernames. More »

Read more: http://feeds.gawker.com/~r/gizmodo/full/~3/YP7LxjZNA70/twitter-for-mac-receives-tasty-upgrade-[lifehacker]