I made CrimeDeskSF (http://itunes.apple.com/us/app/crimedesksf/id339706696?mt=8) to visualize some of this data on the iPhone, including a mostly-gimmicky-but-kinda-fun augmented reality view (drug bust 100ft away!). I'm using the datasf.org datasets for mine (not sure how they compare to the crimespotting ones, or if they're the same).