"mc" wrote in message
. ..
I wonder if there really is demand for it. Being outside of the U.S., I
can't say for sure, but I thought that GPS location was required in cell
phones sold there (not here).

I think cell phones are normally located through the cell tower network,
not through GPS. I could be mistaken.

If that's the case, it would be likley that cheap GPS clocks could be
made, and they are not affected by the noise commonly produced by many
modern electrical/electronic devices.


You do realize that GPS does not work inside most buildings?

In fact the main selling point of longwave is that it goes through
everything (even underground), isn't it?


Absolutely. GPS only works in a clear area with good view to most of the
sky (it's even a little less accurate if you're driving through a steep
sided canyon).