http://brainstormtech.blogs.fortune....-e-reader-war/
"As of last January, Sony had sold more than 400,000 e-reader devices, at which point it stopped disclosing sales. Haber intimates that the company adopted the policy in reaction to Amazon’s reticence. “We were giving out numbers and realized we were the only ones,” he says. “but we’ve sold a significant amount since January, and the momentum is only getting faster and faster.” "
Sorry, I'm not making this stuff up