The Veterans Health Administration hospitals were among the first in the United States to embrace IT-assisted health care in a major way. So it was a much anticipated moment when last week the OpenVista system, a private adaptation of the VA's system, was released as open source code on the SourceForge site. Its commercial backer, Medsphere, made the move after revising the code to run on Linux and adding features a commercial hospital needs, such as providing cost-of-care information to insurers.