When the GPS signal is too weak...

What should BCN do when the GPS signal gets too weak for accurate navigation or tracking?

I am using the Archos 5 Internet Tablet, whose GPS antenna is not great, to put it politely.

The other day, I was trying out the BCN tracking feature for the first time on a trip to the nearby Gault Nature Reserve on Mont Saint Hilaire. (http://www.nationalpost.com/related/topics/Hiking+Mount+Hilaire/1659722/...)

The track started out OK, in the open fields, but as soon as we got under the trees, I noticed that the track zigzagged quite a bit (5 to 10 metres). When we got back down to Lac Hertel, we stopped for a legthy lecture, so I put the Archos to sleep and slipped it into my pocket. About a half-hour later, I turned it on again, and realized that BCN had been running in the background in my pocket all that time, and my track had become a 100-metre-wide rosette around the lakeshore.

Of course I shoulda/coulda stopped tracking rather than just sleeping the Archos.

But perhaps BCN should automatically detect that the GPS signal is degraded or unusable (this gets back to my earlier suggestion about GPS accuracy) and warn the user, maybe stop tracking until the signal is restored.

Not a big deal, but a nice-to-have feature.

- Jeff