Strava: Free Running & Biking App

I was looking up GPS apps the last week and ran across (no pun intended) an app for iPhone & Android called Strava.  It is completely free for what you would need it for.  It keeps track of instantaneous pace and distance.  The app also has an auto-pause feature that knows when you get stopped and will automatically start and stop for you.  In addition, it has the option of audio cues where it will tell you your time and pace every mile or half-mile.  I tried it out earlier last week and it is quite accurate.  The only downside is I hate running with a phone in my hand, but if you are somewhere new and want to know how far you went or want to know if you're hitting a certain pace during a Progression Run then it is definitely worth downloading.