Twitter creator Jack Dorsey just closed a big round of funding for his new company, Square, which values the company at more than $200 million. (Around $240 million, specifically.)

      Not bad for less than two years of work; Square was founded in February, 2009.

      Even more impressive is that Square's valuation has passed $200 million almost a year faster than Twitter did -- and Twitter is one of the biggest websites in the world.

      Twitter closed a $35 million round in February, 2009, valuing the company at $250 million, almost 3 years after Jack Dorsey sent the first tweet in March, 2006.

      So will Jack Dorsey's new company outperform his old company?

      It's certainly a different game.

      Whereas Twitter's valuation -- now $3.7 billion -- has been fueled more by user growth than by revenue growth, Square will not only have to sign up many users to be successful, but also get them to process payments for actual money.

      The payoff could be huge, but it's not going to be easy.

Source from SFGate