Some more info can be found at Bright Side of News.
The plug-in is a result of collaboration between AMD and Adobe, all in the goal of utilizing Stream technology to level the load between the CPU and the GPU. Unlike nVidia's shot with Quadro CX and RapiHD, AMD's plug-in will accelerate all ATI Stream capable cards, e.g. Radeon 2000 series onwards. Seeing both consumer and commercial products accelerating a professional application [no, we do not consider a $699 Premiere Pro CS4 to be anything but a commercial app] is really beneficiary for the companies in the video business, given that for the price of single professional card you can usually get three to four regular ones. In case of Quadro CX, you can get around five GeForce GTX 285 graphics cards.