Hrmph reports on recent patent applications from Apple which revealed that they have been working on other exercise-related features for the iPod. The recent Apple/Nike partnership Sport Kit revealed earlier this week could just be the start. The Nike Sport Kit incorporates an accelerometer placed in your shoe that communicates wirelessly with your iPod nano. The iPod nano then displays additional information about your exercise including time, distance, calories burned and pace. The patent application reveals that Apple has also been working on additional features that could sync your exercise to your music. One possibility described is syncing your music to the same tempo as your run. Tempos could be adjusted based on user preference, but sample menus also reveal a "Training" option which could offer different tempo profiles, increasing and decreasing over time.