Better worry about Microsoft. Their aim is to develop an OS which will function on all sizes of devices from phones to computers and even further. This hits hard at BlackBerry use in enterprise areas There are apps for Windows 8 and more will come. And as far as not having folders is concerned the ability to sort apps out into categories is like having a bunch of open folders. How much of a trick will it be to close those open folders? Probably a whole lot less than to provide an upgraded Android runtime on the BlackBerry PlayBook.