Im in the Miami area so the GPS isnt really that important since everywhere I ride its open...everything is non GPS other than to really track my rides in map format...
I like the idea of using my phone especially for casual rides with friends or family.
Plus the handlebar mount I can take calls and stuff too as Im riding a lot easier.The screen is HUGE too
Do the cadence sensors work with the apps???
I don't think a speed sensor is necessary???