On August 11, 2014 the White House announced the formation of a US Digital Service, as reported in the Washington Post
The White House on Monday announced that is was formally launching a new U.S. Digital Service and that they've hired to lead it Mikey Dickerson ...
U.S. CIO Steve VanRoekel called it a "centralized, world-class capability...made up of our country’s brightest digital talent," forming a team that will be "charged with removing barriers to exceptional Government service delivery and remaking the digital experiences that citizens and businesses have with their Government."
The organisation will apparently be referred to as the USDS - I couldn't find a website yet. The Washington Post article points to a document on the CIO.gov site - U.S. Digital Services Playbook http://playbook.cio.gov/ that may give some ideas of the goals of the organisation. The article indicates the model will be for the service to be a centre of expertise on design and transformation of services for the digital environment.
UPDATE: WhiteHouse.gov blog post - Delivering a Customer-Focused Government Through Smarter IT.
February 24, 2012 San Francisco Innovation - A startup called government