http://www.wsj.com/articles/twitter-mulls-expanding-size-of-tweets-1443554128/

Twitter Inc. is debating whether to allow users to tweet more than 140 characters in each post, which challenges one of the fundamental features of the social media service. An main issue that the company is struggling with is by how much it should extend the limit because changing the originality may “alter the basic Twitter experience”.

Personally, I think Twitter should not change the number of characters allowed because “short messages” is what Twitter is known for and what differentiates Twitter from other social media networks.  😀