Twitter, high on 280 characters, more than doubles the length of display names

What good are 280 characters if you have to shout them from a measly 20-character display name? Just two days following the surprise announcement that Twitter would be doubling the character count allowed per tweet, the San Francisco-based company is back with another update — and you'd better believe it's about yet even more characters. That's right, as of Nov. 9, your display name can be more than twice as long as the old rules allowed.  SEE ALSO: What 280 characters means for Twitter's fut...