Mobile Security Card CL. Clever German techs Giesecke & Devrient has come up with the world’s first contactless smart card in a microSD flash card format. This means that that the card can be used with just about any modern mobile phone to provide for security access, or even contactless cash wallet functionality. One cool thing is the fact that the card gets it’s Near Field Communication power from the reader, so it shouldn’t be a drain on the cell phone battery. This is a pretty awesome technology leap actually, and could really propel the smart card forward into a new age if it works as advertised. Of course, it will make losing your phone in a cab or at a party a tad more painful than at present. Such is the price for progress, eh?