I’m not some user-interface or usability expert, but I could say that twitter does it right. Simply SMOOTH! And, this video by HoweverCorp agrees with me or vice versa. =) And, also their search results for the keywords ‘twitter new homepage’ all agree with me, or me agreeing to them.
Basing on their new homepage design, twitter is now giving more emphasis on their search functionality. I’m intrigued with their search tagline that says, ‘See what people are saying about…’ This does not fail to get into the human emotions. They really know how to make it tick with the users.