A series of what may be leaked slides from RIM may reveal details surrounding various OEM BlackBerry PlayBook accessories. If the slides are indeed authentic, which were obtained by enthusiast blog Fommy, they may give us our first glimpse as a variety of OEM accessories for the BlackBerry PlayBook, and pricing details and some projected availability dates. The snapshots show a variety of cases ranging in price from a $29.99 neoprene sleeve to a $59.99 book-style leather binder. Also seen on the slides is a $49 BlackBerry music gateway, and a $79.99 charging dock. Some the the accessories are showing for shipment dates in July of this year, which would be around 4 months after the 16GB Wifi model of the PlayBook is released this year.