On 31/07/2014 16:36, David C Brown wrote: > The "keyless" lock most certainly does require physical interaction. Rad= io > waves have a very physical reality.:-) Yes! But your (and mine) is a point of view of an engineer not of a marketing ma= nager... --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .