Twitter, very recently added fresh look & features which rolled out to approx 7.5Billion Twitter addicts. Twitter has made few extra feature addition & modification to surviving service (mention) only as @connect & #discover. Twitter this time focusing on rising the users & making the surviving users experience a lot enhanced fresh twitter design 2011.
Twitter has as well updated its buttons graphics to suite well through the whole fresh twitter layout & design. New twitter layout is easy to view multimedia such as picture and video. The profile popup makes it easier to check others profile and to make decision whether to follow them or not.