Implanted chip proposed for reading BG

Just came across this on another forum and thought you guys would be interested:
Miraculous Medical Potential
Taking implantable chip technology a step further, in October 2006, Digital Angel was granted a patent for an implantable RFID microchip that can determine glucose levels in the bodies of animals and humans. A functioning prototype of this groundbreaking device is expected in 2008.
VeriChip website