Your PDA probably does not work as a USB host controller, only a client. My understanding of USB is somewhat limited right now, but I believe that USB devices like the camera and PDA can only communicate with a host controller, on the PC. This would rule having the PDA communicate with the camera.
As for viewing the photos after you take them, if your PDA can read the same memory cards, you can just get a viewer program. For instance, I have Acid Image on my Sony Clie to view photos on the larger color screen right off the memory stick. |