HK, if you're listening we need a small, lightweight, inexpensive (under $30) GPS speedometer with a screen just large enough to display the maximum speed of the last run. Would be nice to be able to USB connect to computer to show 'map' of route and other details of run(s). Replaceable aaa batteries instead of 'built-in lithium' (which will eventually go bad rendering it useless). We need this yesterday!