The Glucowatch is now discontinued. It provided a method to monitor blood sugar levels via a technology that sampled enzymes from the surface of your skin every 10 minutes.
None of these technologies are similar to the Glucowatch as far as I can tell. But the progress in this area leads me to believe that we will have a continuous blood glucose monitor that is non-invasive and bluetooth connected to your iPhone or GooglePhone within a few years. Such a device would be useful to more than just diabetics, although there are enough of them to create a market.
Curt runs a time tracking software company in Texas