So its an official thread now
I have the app for my Droid for the c25k plan and for the tracking of the run paths themselves I have an app called "Jog Tracker" haven't gotten a good chance to test it but will test it on my next bike ride.
I am going to be logging details of the runs which will be 3 days a week until the end of the program, then it will probably jump to 5 days a week.
I have been reading up on joint impact and there are ways to minimize impact overall but never fully eliminate of course, I have never known of any sport being "no impact" so I am ready to deal with this if it comes up.