This thread a few weeks back got me thinking, particularly Gribs's zero-budget solution of running Memorymap on a second hand PDA. I have a Satmap Active 10 which is a brilliant bit of kit but very costly, and the idea of having something which functions more or less the same, but a tenth of the price and a range of other functions is very appealing.
So, the question is, who else is doing the budget OS mapping thing on a PDA, and what's your set-up? Is there any decent freeware that will do a similar job to Memorymap? I've found GPSMap-OS which coupled with Get-A-Map looks like it could provide a decent enough basic navigation service, for local jaunts at any rate.