Has anyone seen or used this and have any comments? Its $30 which is amazing especially for a car adapter! http://www.amazon.com/exec/obidos/tg/detail/-/B0002T3UR4/qid=1105633949/sr=8-1/ref=sr_8_xs_ap_i1_xgl23/103-5589139-2584633?v=glance&s=electronics&n=507846