Apple proposing even smaller SIM card standard?

Reuters is reporting that Apple, ever the miniaturizer, is proposing an international standard for a SIM card even smaller the current iPad and iPhone 4 micro-SIM.

"We were quite happy to see last week that Apple has submitted a new requirement to (European telecoms standards body) ETSI for a smaller SIM form factor -- smaller than the one that goes in iPhone 4 and iPad," said Anne Bouverot, Orange's head of mobile services.

"They have done that through the standardization route, through ETSI, with the sponsorship of some major mobile operators, Orange being one of them," she told the Paris leg of the Reuters Global Technology Summit.

As TiPb answered previously, the current micro-SIM is already the third generation of shrunken-down SIM, following the standard, credit card-sized SIM, the popular mini-SIM used in the original iPhone, iPhone 3G, and iPhone 3GS (and most other phones). How much smaller could they get? Pinky nail sized like micro SD?

Considering the carriers reportedly had a fit when Apple was rumored to considering building the SIM chips right into the iPhone, this is probably the next best solution. Less space taken up by the SIM, the more space is left for battery, right?

The only question is what would it be called? Super-mico? Pica-SIM?