Today' news by BB marketing chief, Seems like Oct 18th is the date for BBM release
Boulben said the company already has 6 million Android and iPhone customers pre-registered for the launch of its BlackBerry Messenger (BBM) service.
He said he expects the BBM to launch on both those platforms "within days," adding that the company is confident that it fixed issues that arose after the initial cross-platform launch of the messaging service last month.