> I think you could also take the Werner smartcard and cut it down to a smaller ...

> I think you could also take the Werner smartcard and cut it down to a smaller size for a USB stick sized reader

Yup, personally I've stuck my OpenPGP card in a Gemplus GemPC USB Shell Token v2:

If you get the OpenPGP card with a SIM cut-out, assembly is a breeze. Almost as good as a GPF stick.