When I drive my car, I rely on Sat Nav, its just one less thing to think about, and yes – i have one that is meant to alert me to traffic and reroute. its saved me from getting parked on a couple of closed roads.
The bike navigation was always meant to be another use for my Garmin Vista HCx for which i have now bought a rail mount, but the first forays in Hampshire were just trying to tie it onto the handlebars. An Elastic Band was a good temporary solution.
I could have used the android app and done the navigation on my phone, but did not have any way to fix that to anything, and my phone is a bit more fragile than the GPS. So how to get the route onto my GPS? Well, I can download the .gpx file from BikeHub and then use Garmin Basecamp to transfer the route onto my GPS. This then let me navigate along quite happilly.