[userbinator]

And hoping Keurig doesn't get any ideas from this.

If Keurig wanted to they could get plenty of ideas from the consumer printer industry, where cartridges have embedded chips in them. Apparently the latest models include some form of crypto too; the older ones were just an EEPROM and were fairly easy to defeat (http://eddiem.com/photo/CIS/inkchip/chip.html) But they should also keep in mind that despite all these countermeasures, plenty of refill kits/aftermarket cartridges/chip resetters/etc. continue to be available, so they're fighting a losing war.