First spotted via FCC filings in February, it looks as if Jawbone’s unannounced Big Jambox is nearing release. Presumably the Big Jambox is exactly that – a larger version of the original, that continues to provide both Bluetooth speaker and speakerphone capabilities. Best Buy’s cached product listing reveals Jawbone’s update clocks in at $299.99 and 2.8 lbs. While I appreciate my orinal Jambox as a mobile accessory, at this size and weight, without AirPlay capabilities, I’d probably opt for another Sonos Play:3 in lieu of a Big Jambox. However, if you find yourself more intrigued than I, it shouldn’t be too long before a release date and color palette will be formally announced.