If there's one market that's really exploded over the last year or two, I'd say it's wearable computers—more specifically fitness trackers. There's already a number of companies in the space, including Nike and Jawbone, and giants like Apple and Samsung are rumored to be joining soon.
And this weekend, veteran iOS accessory-maker Withings officially joined the fray by putting its wearable Pulse tracker up for pre-order. The device, which it showed off at CES earlier this year, can be pocketed, clipped or worn on your wrist and tracked and by a mobile app...