UK GPS Software with Ordnance Survey Maps for PC & PDA Great Britain

UK GPS Software with Ordnance Survey Maps for PC & PDA Great Britain:

I found this software to work very well, it is an excellent buy for anyone that is into trekking or mountain biking etc, it provides very detailed and accurate route cards. For one map region, it has about 50 ordinance survey maps, which if bought separately, could set you back a lot of money.