[Brian]

Looks like the issue with the larger photorealistic stencils is indeed file size - they're all several megabytes in size once you unzip them.

The "Cisco Basics" and "Cisco Physical Routers" stencils open up just fine on the iPad if you unzip them and install them from iTunes, though.

(Unlike the garden stencil that I repackaged for another customer, we don't own the images in those stencils. I'm not sure if copyright law allows us to re-package them.)