Just as a survey to see if people like the idea. The card would hold the wallet.dat file on its memory and also it would hold a pin to decrypt the wallet. The card reader would have a record of all the blocks etc.
It would make bitcoins more feasible as a payment solution. We would use java chip cards so they can be programmed. Bt I'm not use wether 80k is enough for memory. Or wether we need more!
http://www.smartcardsource.com/contents/en-ca/p3_J2A080.html


It would mean bitcoins could be used in the real world! Not just inside the interwebs!