Nvidia planning new PhysX-themed graphics card

Looks like Nvidia is apparently prepping some kind of new graphics card product for a launch this fall. This week Nvidia sent out invites for people to come to their Santa Clara, California offices on October 30 for a Halloween-themed launch event that will introduce "a rocking new graphics card designed by NVIDIA and EVGA to take PhysX to the next level." That's all I know at this point but if you happen to be in the area on that date there may still be time to send in your RSVP.