If you read our review of the rather handy Ordnance Survey on line Getamap route-planning and sharing service last week, you might like to know that the OS is offering a special deal to OM users between now and the end of September, which will save

The Ordnance Survey has had its own on line route-planning tool for a while, but it's just been revamped under the name Getamap - erm, geddit - a free to use web system which lets you upload and download route data and plot out your own walking

and an iPhone for a quick play and some first impressions. First, the interface seems nicely stripped down and useable. The free overview map is a simple road chart and if you want to use the app for outdoors navigation or advance planning, you'll need