Wow 3G coverage is terrible when viewed on these maps. o2 in particular is piss poor.
http://www.ofcom.org.uk/radiocomms/...and/cellular/3g/maps/3gmaps/coverage_maps.pdf
http://www.ofcom.org.uk/media/features/msaone
http://www.ofcom.org.uk/radiocomms/...and/cellular/3g/maps/3gmaps/coverage_maps.pdf
http://www.ofcom.org.uk/media/features/msaone