Twitter IPO much in demand.

Twitter (TWTR) has reportedly attracted enough interest for its IPO to be oversubscribed. The demand comes even though Twitter's management has refrained from outlining how the micro-blogging Web site plans to break even. Twitter intends to sell 70M shares at a price range of $17-20 each, although it could end up selling the stock for more than that and/or increase the number of shares it will offer. The company is due to price the shares on Wednesday and start trading on Thursday.