The Fitbit Flex comes in many colors -- and the bands are interchangeable if you're into changing your look to match your outfit.
Fitbit goes ahead and introduces the Flex. It looks like a perfect marriage between the UP and the Fuelband. I wonder if the feedback on the band, which displays progress towards your goal as a percentage, not exact number, would be enough for me. I wonder if I'd miss the other aspect of the Fuelband that I like: that I also use it as my watch. Guess I'll have to try it and find out.