There is one solution on the horizon. Blood glucose measuring machines have been getting smaller for years.

If you can get them as small as the RFID microchips which are implanted in pets (these are compulsary for pets travelling between different EU countries, some people have implanted them in themselves;
and you can power the machine fr0m a suitable long-lasting battery (or from the human nervious system);
and they do not need external supplies like the reuseable sticks the current machines have.

Then you can implant the machine under your skin, and an external display device held close to the skin can display the result. Such a machine could take a reading every hour or 30 minutes, and display the result as a graph over the last 24 hours. This would be much more useful than the current reading two or three times a day. It would allow you to see if you were going up or down.

I'm a recently diagnosed diabetic and I would love if the idea in the comment above were available. I agree that the current system does not let you know if your blood glucose is rising or falling and with only 2-3 tests a day it is difficult to get a really clear picture of what is going on. I would like to believe that the drug companies aren't continuing to only market the one-time test strips out of greed, but because there is no other option yet. Great idea!

There is a wrist watch on the market that provides continuous monitoring of glucose levels. If this could be combined with an automatic metering system than glucose shock might altogether be avoided. Glucose shock is dominantly responsible for diabetics becoming increasingly irrational. The damage to the nervous system is presently irreversible. That is why maintaining glucose levels is so important, the damage to the nervous system makes it more and more difficult for the diabetic patient to function normally. Their thought processes change and they increasingly become non-compliant. At some point they are a risk in many ways to themselves and to those around them.

See RFID Glucose Monitoring

I too saw the abovementioned article in the trade press. Unfortunately it relates to a device that allows you to program a glucose pump using an RFID-type interface directly from a blood sugar measuring machine - Unless you posted the wrong link. You still need to get the blood-sugar measurements in the first place via a drop of blood, and not all diabetics use glucose pumps, many (most?) use injections.

I would really like a device that would automatically make and record regular (half-hourly) measurements, without having to prick fingers, and without the problem that when a diabetic goes low they are incapable of making a reading themselves.
Have you ever tried to persuade a diabetic who is being awkward (because they are low), and is slowly loosing the mental competence to do anything (because they are getting lower) to do a blood reading?