cant beat a map…
just picked up a Navigo v2 for about £45 from WH Smiths. Whilst the NAV software that comes with it wasnt great (nothing wrong with it, just there is better out there), it seems that it it is reasonably easy to hack it (like most it runs windows ce in the background) to get other software to run on it.
Having done this, I know for a fact it will run:
TomTom v7 (with 2008 speed camera updates, and 7 dig postcode search)
IGO8
and most fun, memorymap
so dephending upon what I am doing I can use tom tom etc for driving, or switch over for OS mapping if outside (still doesnt beat a real map and the ability to navigate though!) Plenty of stuff on t’internet about hacking them