The good people at ViewRanger (http://www.viewranger.com) have very kindly provided me with a copy of their Android app and accompanying detailed maps such that my route can be tracked from the web.
So at any point you will be able to visit a URL to keep tabs on my progress!
I’ll post more about how to do this closer to the ride.
Until then, check out www.viewranger.com – they’ve got some really cool stuff!