Looks like the Air Force has decided that it doesn't believe in
competition after all (I'm assuming that the Air Force was consulted
as is planning to say yes, although I assume that their approval is
still needed):

United Launch Alliance will be structured as a 50-50 joint venture
between Boeing and Lockheed Martin -- combining services currently
provided separately by Boeing Integrated Defense Systems' Expendable
Launch Systems division and by Lockheed Martin's Space Systems Company
-- for launches of each company's respective rockets.

http://spaceflightnow.com/news/n0505/01eelv/