Do you have an iPhone? Do you ride a bike? Do you use the RoadCycling.com Training Diary to track your rides? Now you can put all three of these together with TrainingPeaks GPS Cycle Tracker Pro, an iPhone app recently acquired by Peaksware, the company behind TrainingPeaks, the software that powers the RoadCycling.com Training Diary. Now is the time to try it out because for 48 hours on March 22 and 23 the TrainingPeaks GPS Cycle Tracker Pro app will be only 99-cents AND the proceeds will go to charity.

The proceeds from the 48 hour sale will be divided equally between the American Cancer Society's DetermiNation, The Leukemia & Lymphoma Society's Team in Training and the National Multiple Sclerosis Society's BikeMS programs.

By integrating the Cycle Tracker Pro iPhone app with the RoadCycling.com Diary for athletes and coaches, you can now track all your cycling (and even running or walking) miles on your iPhone and then save it directly to your Diary to review the route, calories burned and more with friends through Facebook and Twitter or your coach. Learn more at http://home.trainingpeaks.com/mobile-apps/announcing-trainingpeaks-gps.aspx

First, to sign up for your Roadcycling.com Training Diary visit http://www.roadcycling.com/diary . Next, visit http://itunes.apple.com/us/app/cycle-tracker-pro-trainingpeaksgps/id423365379 to download the TrainingPeaks GPS Cycle Tracker Pro app for iPhones from the Apple iTunes store. Then you'll be ready for your best cycling season ever, sporting both the best cycling training diary and the best iPhone cycling tracking app to assist you in managing, monitoring and tracking your training efforts.