Finally: Twitter Begins Rolling Out Real-time Activity Streams

Twitter seems to be slowly rolling out its new real-time Activity and @Username streams after introducing the tabs back in August.
The Activity stream is very similar to the Facebook News Feed, as it lets users keep track of what their friends or followers are doing across the network by showing their favorites, follows, retweets, mentions and more.
Additionally, instead of the @Mentions, you can now navigate to @Username to see mentions, retweets, new followers and posts that users have marked as a favorite.
Users who have access to the streams are posting mixed reviews on Twitter.
"The new twitter activity stream takes twitter stalking to a whole new level," SEO expert Timothy Newman tweeted.
"...Definitely wll help with organic growth if people use it!" user Adrienne May tweeted.
Earlier today, Mozilla Firefox released an update that features Twitter search. On November 1, Twitter introduced stories to encourage people to share stories about interesting Twitter uses.
As of October, Twitter processes 250M tweets per day and has 100M+ global active monthly users, with 50% of those users logging in every day.
SCREEN SHOTS
@Username stream.
Activity stream.