That's useful information, thank you.
I may well look into switching our mobiles over to Three. We still need a landline mind you, what with running a business from home (and relying on a wobbly ADSL service for our interwebs).
We noticed a new mobile mast on the hillside north of here a year or so back. It corresponds pretty closely with a splash of predicted Three coverage that, according to the map, doesn't extend to us, even though we have clear line of sight. I guess the power is too low.
I have to say, I am holding out much hope that eventually, 4G will allow us to route all our calls and data wirelessly, perhaps with some decent hardware and an external antenna on the house. The Scottish govt has a plan to enable 99% of homes for super fast broadband by 2020 but to do that for us, they will have to run a very long piece of fibre up the road from the nearest telephone exchange to serve a very few homes, or else install a satellite system that will be too expensive for any of us to use anyway.