Though we'd be hard-pressed to call it a radical evolution of iHome's prior alarm clock lineup, iP88 ($150) does offer a number of non-trivial tweaks to the company's earlier alarm clock designs. Most obvious is the addition of a second charging and listening dock to the top, enabling iP88 to work with two iPhones, two iPods, or a mix at the same time. Second is a third alarm -- the first three-alarm system released by the company -- which is controlled…