Digithink No. 3: Dispensing wisdom?

You know those universal soda dispensers at restaurants that give out different drinks? Like lemonade, cola and water? Well, now they come with a new feature: RFID-tagged cups (Radio Frequency Identification tags). They not only lock out non-enabled cups, enabled cups are disabled after each day (for say reusable collector cups), they have timed lockouts for refills, and they limit the volume  output of the machine. And all of this is networked and shared with other machines...