So I tried it out and am reporting back. Super easy to use. You literally just hit start to activate a timer, and hit stop when you are done, and then finish to submit your time (you can switch to track by distance if you prefer). Simples. You can walk, run or bike, and select a different charity each time. Tomorrow I'm going to walk for Autism Speaks. I mean its probably just pennies, but everything helps, and I'm thinking if lots of folks are using it then it can't be bad.
Thanks for the Zumba app tip Straightahead, will check it out!