I still need the telephone most of the time while I am out so can't switch to offline mode, but this would be excellent if I was on holiday where I am not bothered about people being able to contact me. So I shall remember that.

I had a look through the link and have installed the 2g/3g app reckon that will make a big difference. I only have the OM weather widget on my desktop, only have one desktop, and just shortcuts to apps on my desktop thats all.

I have switched the brightness down though, I always have it on full...reckon this could make a big difference.

Thanks for all your help. I'll post again next time I use it for an hour or so's caching and see how I get on.