@vnbb let us know about their latest BlackBerry utility called vnPButils. It sort of takes the role of their BlackBerry smartphone utility, vnBButils, and performs similar functions for your PlayBook. It allows you to easily sideload applications onto your BlackBerry PlayBook from your windows PC which DDPB has been letting you do for awhile. They also allow you to manage the applications installed on your PlayBook from your PC which allows you to list, check status, launch, terminate, or uninstall the app. It also lets you create BAR files from BDM backup files but I am not sure why you would want to do that.
Check out vnBButils here from BBvietnam. This seems to be a work in progress and I have not tried all the features of the app but let us know what you think!