For the power users out there, this isn’t even remotely interesting, since you all use TweetDeck, Twhirl, or any other kick-ass desktop client that already understand these things. But web interface users who wanted to catch up on mentions have been forced to search, since the @replies link in the sidebar just listed tweets where you were @username’d at the beginning of a tweet.
In your Twitter sidebar you’ll now see your own @username tab. When you click that tab, you’ll see a list of all tweets referencing your account with the @username convention anywhere in the tweet—instead of only at the beginning which is how it used to work.
Thord Daniel Hedengren is a designer, writer, and blogger, and also the former editor of The Blog Herald. He used to be a hotshot in the gaming industry in Sweden, but sold everything and went International. Most recently he wrote a book called Smashing WordPress: Beyond the Blog, and does loads of kickass design.