From a recent article by Roger Cheng over at CNet:
Nike is only shooting itself in the foot with its stubborn reluctance to work with Android. The athletic apparel company on Tuesday introduced its second-generation fitness tracker, the FuelBand SE, which worked beautifully on Apple's iOS devices and computers. Missing from the presentation, however, was any mention of Android.
Earlier this year, I wrote about the possible reasons why Nike's FuelBand won't have an Android app. Funny enough, those reasons that I analyzed are still as true today as they were eight months ago.
By the way, John Gruber (of Daring Fireball fame) wrote a short but excellent post on why Cheng's premise is flawed.