It's a short and sweet disclosure from BGR this morning as multiple sources have apparently informed the news outlet that RIM's BlackBerry PlayBook will make its debut on store shelves on April 10th. The BlackBerry Tablet OS will reach Gold Master status on March 31st, according to the same soothsayers, which is late enough in proceedings to necessitate it being delivered as an update upon first booting up your device. We too have heard of a late March / early April launch for the PlayBook, which RIM itself promised for the first quarter of 2011, though the intrigue of what carriers will be providing you with connectivity on this 7-incher remains. You'll know more as soon as we do.