According to Kaufman Bros. analyst Shaw Wu, the BlackBerry PlayBook is delayed until May 2011 due to battery life issues. Wu's sources have said that the current battery on the PlayBook only lasts a few hours. Compared to the Samsung Galaxy at six hours and the iPad at ten hours, the PlayBook will be a tough sell. With a dual core processor and 1 gb of ram, the PlayBook seems to require a larger battery to power it. Also, the QNX OS that the PlayBook runs on was initially designed for network equipment and automobiles, devices where battery life is not a huge consideration. Hopefully RIM can pull this off with minor adjustments to the design.
It appear its not. Yesterday RIM released this statement (according to Forbes):
“Any testing or observation of battery life to date by anyone outside of RIM would have been performed using pre-beta units that were built without power management implemented. RIM is on track with its schedule to optimize the BlackBerry PlayBook’s battery life and looks forward to providing customers with a professional grade tablet that offers superior performance with comparable battery life.” (emphasis added by me)
So I do believe this is actually the case. Normally we don't see RIM respond to these analyst claims so I think thats interesting by itself.