Thats funny, after working with most major device manfacturers on digital video for 2 years (2009-2010), I submitted a similar concept to YC in late 2010 but re

Thats funny, after working with most major device manfacturers on digital video for 2 years (2009-2010), I submitted a similar concept to YC in late 2010 but received no reply. My core point was mobile device manufacturers desperately need a USP and this would work nicely combined with some DSP based nearby device playlist remixing and possibly a heartbeat sense and some GPS smarts. You know for shared sports like cycling and jogging and rowing and stuff. Perfect sync not required, since everyone is on earbuds. Vary the music as you go over the hill, the sun sets, tempo manipulation, auto-transitioning between tracks, etc. Would work just as well for smarter playlists while driving. Tech's all there these days, still not aware of anyone who has done it. If you make millions on it wire me 100k. :)