Yes, but not as convenient as having GPS in one little unit in your watch, permanently on your wrist; also costly to a skinflint like me, with tariffs, connection fees etc. It will come soon, I'm sure.
And before anyone points it out, there are already GPS 's that can be worn on the wrist, with a special wrist strap. Don't ask me the make or model, but I have seen someone, a botanist, with one like this.
Time for me to confess that I carry a GPS with me for no other reason than to obtain accurate locations for ferns that I record, and so do several other botanists and wild flower enthusiasts I know, too. You jot everything in a notebook at the time, then later you can enter it all into a database in one go. The alternative is, you sit at the pc with your notebook, a 1:25,000 map and a romer, and try and remember precisely where you were on the map when you saw something. (For the uninitiated, the records end up being collated for county floras, or they can be used by ecologists or councils when dealing with planning applications, etc.) You can also go back with your GPS to re-find something, in a dense wood for example.
I prefer to find my way around with a map and compass, and there has only been one occasion when I have got a bit lost and used my GPS to get a grid reference to work out from my map exactly where I was.
In the meantime, has anyone got the right time?