It would be very nice if i could put in same chart many items, example speed, altitude and heart rate curve would be very informatic. Also there is obvious need to compare multiple trainings, how my current speed curve in my favourite route is developed since last summer? Look example from www.traxmeet.com demo. Also i would like to see what is my speed in route point, maybe map display where i can "move cursor" in my route and current speed, altitude, heart rate etc. values is displayed in corner or so.