Just got back from a 2.3 mile run in 26 minutes. RunKeeper said a 12 minute mile average... not bad after my 12:48 average last week. My biggest problem was where to keep my phone (with RunKeeper installed). I had it in the back pocked of my workout pants and my pants kept falling down. If not for that I probably could have done better.
I know that's a lovely mental picture of a girl trying to run while constantly yanking up her pants! (Imagine the fact that I had probably 9 more cars pass by me today than ever!!)