Sending out an SOS: A 2.5-ounce mobile emergency phone with a GPS locator, a preset 911 button and three other programmable speed-dial buttons for designated pals. If you crash and are knocked out, the GPS signal locates you.
COMMENTING POLICY:Readers are encouraged to post comments that are germane to the article. We reserve the right to remove any user, and to delete comments that contain abusive language or personal threats, as well as those that are racist or demeaning. Readers may report comments by clicking "Report Abuse." Once a comment has been flagged, a Baltimore Sun staffer will investigate. Click here for more information on commenting.