Hey, everyone!
A friend of mine sent me a condensed review of the ADA Scientific Sessions. This little portion stood out to me:

"Medtronic has supported research to find out whether glucose sensors are affected by the proximity of insulin infusion. Preliminary results indicate that sensor performance is unaffected when insulin from a pump is infused within about an inch of the sensor. This may open the door for development and approval of an infusion device and sensor in the same unit."

This reminded me of Gil DePaula's Pancreum device:

http://www.tudiabetes.org/profiles/blogs/pancreum-is-one-of-10

It seems as though it's possible to have a device that can deliver insulin (and/or glucagon) as well as sense BG accurately. I'm psyched.