Now people you can stop searching at http://search.twitter.com for mentions of your name. Where previously the tab in your home page was called Replies , it is now labeled "@shashib" (in my case) and clicking on that tab will bring you to a page "Mentions of @shashib" . Cool now you can thank all the people who mention you at the beginning , end or middle of any tweet. I like this :)
From the Twitter Blog:
"We're updating the Replies feature and referring to it instead as Mentions. 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. So for me it would be all mentions of @biz"