running with a goal?

I track my running with an app on my iPhone called RunKeeper. It is great it tells me pace and is GPS enabled and all that great stuff.  I use to run with the Nike+ when I ran in shoes.  I used Nike+ shoes and put the little pebble thing in my right shoe and it would sync with my iPod nano and then I could sync it with my computer and well yah you get the idea.  I liked tracking my running when I first started because before all this you would track with a car and go out and drive your running route.  I then would track it on the computer.  Back when I started GPS watches were HUGE and came with a big ole price tag.  Now I run with a phone in my hand, I should really think about getting one of those arm bands...I digress.  The whole point was I could see my running with stats I could track progress and what not.  I could set a goal for myself and Nike+ would give me a goal to run for say a 10K and I would run that goal and then stop running for a while.
So now I run with RunKeeper.  It started as a pretty basic free app, tracks speed, distance, elevation, all that jazz.  It sync with all the social media sights and has it's own sight.  I can even "run with friends" and see how they are doing.  Overall for a free app it does what I need.  One day I was digging deeper into the app to see what else it could do and a message came up and asked if I wanted to "set a goal."  I figured what the hey and set 50 miles for the summer.  Not a hard task for me running about 10-12 miles a week anyway.  Well I got unmotivated and we got a heat wave and I got hit with the Blerch (read it if you like running) and just stopped running but I kept getting mocked by RunKeeper notifications..."remember last week when you thought working out was a good idea?  Lets do it AGAIN!"  So I ran on vacation in Maine, then last week got motivated to run with my sister in Texas...so hot...so gross...terrible air.  I ran today. It felt good.  I need to run more.  I need it to not be 85+ degrees with lots of humidity everyday.  I am half way to my goal with about two weeks left.  25 miles to go, I can do it, really just 5 more 5 mile runs!