From RIM’s advisory this morning:

As previously disclosed, RIM has a high level of BlackBerry PlayBook inventory. The Company now believes that an increase in promotional activity is required to drive sell-through to end customers. This is due to several factors, including recent shifts in the competitive dynamics of the tablet market and a delay in the release of the PlayBook OS 2.0 software. As a result, RIM will record a provision that reflects the current market environment and allows it to expand upon the aggressive level of promotional activity recently employed by the Company in order to drive PlayBook adoption around the world.“RIM is committed to the BlackBerry PlayBook and believes the tablet market is still in its infancy. Although a number of factors have led to the need for an inventory provision in the third quarter, we believe the PlayBook, which will be further enhanced with the upcoming PlayBook OS 2.0 software, is a compelling tablet for consumers that also offers unique security and manageability features for the enterprise,” said Mike Lazaridis, Co-CEO at Research In Motion. “Early results from recent PlayBook promotions indicate a significant increase in demand across most channels. We look forward to continuing to grow the installed base of PlayBook users and to attracting more and more developers to expand the volume of applications, content and services that leverage the power of the industry leading QNX-based platform.”

In other words: The PlayBook sucks balls and the only way we can get rid of the warehouse full of product is to give it away.