Have you seen the new wallet size passports? Pretty cool for people who travel to Canada, Mexico or take alot of cruises.
http://travel.state.gov/passport/ppt_card/ppt_card_3926.html
The passport card facilitates entry and expedites document processing at U.S. land and sea ports-of-entry when arriving from Canada, Mexico, the Caribbean and Bermuda. The card may not be used to travel by air. Otherwise, it carries the rights and privileges of the U.S. passport book and is adjudicated to the exact same standards.
