RIM has always been a business thoroughbred, and this lineage continues with the release of Citrix Receiver for its PlayBook slab. Currently in beta, the remote access / virtualization tool is available via the BlackBerry App World, and boasts a smorgasbord of features sure to keep even the most tortured of Sys-Admins happy. Like? The ability to control which of your company's applications are available, multitasking, single sign-on access, and of course secure access to your enterprise systems. This ain't the first slate to offer up the service -- HP's now-defun