The Fuelband is great. I am far more active as a result. The app is great for me, but liaising with Friends is an important part of the Fuelband system. Please add functionality through your Nike user network. Not everyone uses Facebook, but everyone using your app uses your network.

It is great for tracking my frequent flyer programs, but after two months I still can't get Malaysian Airlines added. Oh well.

It has greater capabilities than I can use

This is probably the best app for counting calories and understanding diet. The information of vitamins and minerals is useful, though most food items don't have these data. The app could use better analytical tools, but they all can (e.g. weekly consolidated data)