It looks like the BlackBerry PlayBook is one step closer to hitting retail shelves as the FCC has approved all three WiFi-only models (16GB, 32GB, 64GB). No word on the WiMax version for Sprint, but we’re sure we’ll see that in due time. The FCC filing is still under a bit of the confidentiality request from RIM, so external and internal test shots and the like aren’t available. Also, the PlayBook’s FCC ID looks to be the same as the image we spotted on RIM’s media site. Looks like the PlayBook is getting closer!