Supercompressor
iBike Dash CC

SoFlo-based iBike'll transform your iPhone/Pod into an all-knowing two-wheel guru; dock it to your horse in its water-resistant case, and you'll be able to meticulously track your pace/ riding routes, use customized fitness / heart-rate monitors, and even talk hands-free on your phone, meaning you can simultaneously wave down and call people for a lift when you end up stranded on MacArthur Causeway.