Only two companies can reasonably claim to have defined the iPod speaker accessory category. One year before Bose came along with the $300 SoundDock—a comparatively expensive, visually neutral all-in-one speaker system that has sold millions of units—Altec Lansing debuted inMotion, a $150 fold-up speaker that perfectly matched the earliest docking iPod in both looks and spirit. inMotion was a sensation, adding four battery-powered 1-inch…
