Have been using Polar Flow since I got my V800 about a month ago. First time I've used an online 'logbook' so cannot compare it to anything else. I'm happy so far.
Lets give some support to Prof Noakes: https://secure.avaaz.org/en/petition/Health_Professions_Council_of_South_Africa_Support_Prof_Tim_Noakes_in_his_quest_to_improve_eating_guidelines/?cNjdlbb
Haven't read thru all the comments so this may have been covered but I can just imagine the chaos as thousands of cyclists after completing their mini tour head off to ride up the coast to Hout Bay.