I have a suggestion for Ecoach which I have not seen mentioned elsewhere. Not sure how active Ecoach is though these days, although it looks great.

Would it be possible to have an option where you could view live data, comparing with a previous workout over the same route in real time.

I use Nokia sports tracker, but am probably going to pick up a N810 while they are so cheap, and really fancy running this app as well, this added functionality would be really great though

Gaz