We've had a shimmer in our eye for Jawbone's $200 Jambox, the itty bitty Bluetooth 'smartspeaker,' ever since it was released back in late 2010. So, imagine our delight now that the company has just stepped things up to a larger level with its new $300 Big Jambox. Measuring in at well over double the size of the original, the 2.7-pound speaker is still very similar in design, featuring the familiar perforated metal grill designs by Yves Behar. The larger footprint helps it to be more functionally capable than its sibling, yet it's still small enough to carry in one hand. On top, the unit sports pla