Having a route planner on a PDA makes a lot of sense, and En Route 1.0 makes effective use of the Psion 5's pen interface.
Installation requires a PC with a CD-ROM drive and a serial interface.
An installation utility is provided for Windows 3.x and 95. It took us an hour to install the application itself, along with maps of the UK and France. En Route also supports GPS receivers with serial outputs. Entering the details of your journey is straightforward, and in addition to the start and end points you can specify up to four detours and another four places to avoid. Locations can be towns, cities, railway stations and so on, and are usually entered by simply typing in their name.