Thanks for all the help and advice, especially those who have taken the time and trouble to write me lengthy dissertations on the subject. ... it looks like the best thing is the 128 gB + Retina Display + 3/4G version. Plus a subscription to Skydemon.
As I now understand it a "Bad Elf" or similar is only needed on a non 3G / GPS iPad.
I'll look into a 3G/4G supplier in due course once it's running on WiFi.
Any comments on use of 3G for an iPad and which suppliers to use ?
"3" seems cheapest (£15 / month for 10 GB) but I am not sure about the coverage.
Mostly I have used Vodafone (since around 1986) but they are only OK until the slightest hiccup when their customer services and ability to fix anything (at least in my experience) is appalling !!!
Last edited by Dave Gittins; 5th Apr 2013 at 08:06.