In reply to Jim Fraser:
> Is this licensed for UK land use?
>
> Don't assume
The web page linked by the OP does state that the device is: "Approved by Ofcom for use in British hills." There's a bit more information about it here:
http://en.wikipedia.org/wiki/Globalstar#SPOT_Inc.
It uses a GPS receiver together with a Globalstar satellite telephone-based simplex data transmission device. You have to sign up to a sat phone airtime contract for the data messages it sends (as mentioned in smallish print on the web page, bottom right). So it'll be legal wherever sat phones are legal.
So it's not an EPIRB, but it does seem to have most of the same drawbacks of an EPIRB, as discussed at length in this thread:
http://www.ukclimbing.com/forums/t.php?t=272218 In particular, if you press the "999" or "Help" button, the message it sends is simply "Help!", with a location. Nothing to indicate the nature of the emergency, which could be anything from someone being lost to multiple seriously injured casualities. How do the emergency services know what to send?
It also seems a bit daft to have a GPS receiver which can't tell
you where you are. Although I suppose you could get it to send "OK" or tracking e-mails to your own e-mail address, which you could then pick up on your laptop via a separate sat phone and use to locate yourself using Google Maps. Of course, Google Maps is well-known for its detailed mapping of the sort of remote areas where you can't get mobile coverage. And everyone takes their laptop with them out on the hills these days, don't they? Hang on, though: if you have a separate sat phone you could buy a GPS receiver (for less than £150 and with no airtime contract) so that when you telephone the appropriate emergency service you can tell them where you are
as well as what's actually amiss.
In my opinion it's crock. The fact that Trail magazine have allegedly endorsed it enthusiastically merely reinfiorces this view.
(And did you spot the bit on the Wikipedia page I linked about the possibility of the Globalstar system failing completely this year?)