FWIW Endomondo allows others to track your ride in the free version. They can also send you messages: eg They type in the webapp "Keep going! Go faster", and yo

FWIW Endomondo allows others to track your ride in the free version. They can also send you messages: eg They type in the webapp "Keep going! Go faster", and your phone cuts the music out and does text->speech of 'Message from <user>: keep going! go faster' It's quite cool :) http://www.endomondo.com/login http://www.endomondo.com/login