I've had all the Jawbones as well as the Blueant Q1. As before, I like the Jawbones, the Icon is the best of the Jawbones, by far. All the earlier ones had a quirky switch arrangement, that was way too cool and way less functional. The Blueant has nice sound, but short Batt life, and an easily damaged "stem" on the earpiece where the rubber gelpad attaches. That makes the Q1 very prone to damage. Another advantage of the JB Icon is it uses Micro USB, same as N900. Blueant's connector is proprietary, you must use expensive blueant PSUs.

Ignore Jawbone's "Software" appz, pretty useless. They do have one great feature though. You click the button and it gives you estimated Battery life left in hours. I like that a lot.