We do optimize Run.GPS also for Smartphones (without touchscreen). All functions are accessible without stylus. The "3" key is for splitting. Please take a look at the Quick Reference (included in the program: main menu page 3 :-) > Quick Reference). Maybe we'll add shortcuts for the main menu later on.
I'd love to see a non-touchscreen friendly version of this great software. Right now you have to navigate through three levels of a menu, clicking a minimum number of 8 times, just to exit the program, using Windows Mobile 6 Classic. Also, several features do not appear to work (e.g., Split) without a touchscreen. Perhaps a basic vs. expert mode? Or allow user to reorder menu items? Just throwing it out there.