It's not a silly idea, in the right context. Companies running drug trials will be all over this. Noncompliance is a huge problem and, worse, it's currently a nearly unmeasureable problem.
In the right context, everything is silly. What was your second point?
“About half of all people don’t take medications like they’re supposed to,” says Eric Topol, director of the Scripps Translational Science Institute in La Jolla,California. “This device could be a solution to that problem, so that doctors can know when to rev up a patient’s medication adherence.”
You know, I kind of like the idea of deciding for myself what medication I take and when. The idea of my doctor trying to make me ingest a sensor like I'm some sort of medical prisoner is more than a little creepy to me. What's next, is he going to give me forced ball-shock treatments if I refuse to eat healthy?
Trust your doctor or don't. I pay mine because I value his knowledge. The dosage he recommends is what I take. (It's not uncommon for that recommendation to be 'as needed') I think this is a silly idea...and based more on preventing the sharing/selling of medication, but I don't think there's anything creepy medically about it.
Statistics means never having to say you're certain.