Facebook should copy Sina Weibo mechanics for Facebook web or mobile.
Facebook today cool but Weibo mechanics is far better a social tool than what facebook have today. Twitteer to me is the past. If Facebook wants to skin Twitter alive, just copy and add Sina Weibo meachnaics and Twitter is a dead duck.
Unless Twitter see's the potential first and move now or it's game over very soon for Twitter if Mark Zuc see's it and act first.
