Matt Asay writes "On October 13, 2008, Hewlett-Packard sent a complaint to an open-source competitor, GroundWork, asking GroundWork to stop revealing HP's 'confidential' pricing. CNET has posted the letter, which indicates that HP doesn't want its pricing revealed, but which doesn't question the veracity of the pricing (which, not surprisingly, is 82 percent higher than the open-source vendor's). Does HP think its pricing is really a secret? It's publicly available at GSA Advantage. Guess what? HP software costs a lot of money, but presumably feels that it can justify the high prices. Why try to hide the pricing information?"