I agree with this. I'm now based in Beijing and the local Twitter clones (the largest with hundreds of millions of users on Weibo.com) have a 140 character limi

I agree with this. I'm now based in Beijing and the local Twitter clones (the largest with hundreds of millions of users on Weibo.com) have a 140 character limit, but in Chinese. Each Chinese character has roughly the same expressiveness as a full word in English, and it's a much richer experience. Changing the limit to something like 100 words would be a welcome change IMO.