We have been told by multiple sources that RIM�s very first tablet will be launching on April 10th in retail locations. Additionally, we�re told the OS goes GM (gold master) on March 31st and that when you boot up the device right out of the box, you�ll be prompted to upgrade to a newer version of the OS. We�ll have another hands-on coming up shortly but in the meantime, let us know if you plan to snag a PlayBook next month in the comments below, alright?