According to Netbook News Sina, a leading Web portal in China has a microblogging service called ‘Sina Weibo’ which is a Twitter-like social-media service.

According to Sina says Weibo users doubled to more than 100 million just in the last four months of 2010. Last month, Sina added instant messaging and location-based services to Weibo, which the company now says is the centerpiece of its media growth strategy.

Here is a look at an early build for Sina running on MeeGo