Email I got from Runkeeper today:
We know that many of you look at the New Year as a good time to get started with or improve upon your fitness routines. In an effort to encourage more people to get off the couch, and as a show of appreciation to the RunKeeper community for your terrific support for the last two and a half years, we're making the RunKeeper Pro app (usually $9.99 USD) free to download now through the end of January!
This means you can now download RunKeeper Pro from the iPhone App Store for free through the entire month!
We hope that this helps give you or your friends and loved ones some extra motivation to get out there and log your miles or kilometers! Now, what are you waiting for? Go download the app now! Enjoy, and wishing each of you a healthy and prosperous 2011.
Nice find! I had been contemplating buying the pro version, and now it is free!