Competition between Airbus and Boeing, the two largest remaining airliner manufacturers, intensified, with pan-European Airbus outselling American Boeing for the first time during this decade. Airbus launched the double-decker Airbus A380, the largest passenger aircraft ever to enter production. The Boeing 787 Dreamliner, the first mass-production aircraft manufactured primarily with composite materials, had its maiden flight. Production of the Boeing 757, Boeing's largest single-aisle airliner, ended with no replacement. The Concorde, a turbojet-powered supersonic passenger airliner or supersonic transport (SST), was retired in 2003 due to a general downturn in the aviation industry after the type's only crash in 2000, the 9/11 terrorist attacks in 2001 and a decision by Airbus, the successor firm of Aerospatiale and BAC, to discontinue maintenance support. December 9, 2005 – The London Transport Executive AEC Routemaster double-decker bus was officially withdrawn from 51 years general service in the UK. In the 2008 London mayoral election campaign, prospective mayor Boris Johnson made several commitments to change the London Buses vehicle policy, namely to introduce a new Routemaster, and remove the bendy buses. High-speed rail projects opened across Asia and Europe, and rail services saw record passenger numbers. The Acela Express, the first full high-speed service in North America, started on the Northeast Corridor in 2000. The Qinhuangdao–Shenyang High-Speed Railway opened, becoming the first high-speed railway in China. High Speed 1, the first true high-speed line in the United Kingdom, opened in stages between 2003 and 2007, cutting travel times between Paris, Brussels and London considerably. Taiwan High Speed Rail opened in 2007, connecting cities down the island's west coast. HSL-Zuid opened in 2009, linking Amsterdam to the European high-speed network for the first time. Video Digital cameras become widely popular due to rapid decreases in size and cost while photo resolution steadily increases. As a result, the digital cameras largely supplanted the analog cameras and the integration into mobile phones increase greatly. Digital camera outsold film camera in 2003. Since 2007, digital cameras started being manufactured with the face recognition feature built in. Flat panel displays started becoming widely popular in the second half of the decade displacing cathode ray tubes. Handheld projectors enter the market and are then integrated into cellphones. DVR devices such as TiVo became popular, making it possible to record television broadcasts to a hard drive-based digital storage medium and allowing many additional features including the option to fast-forward through commercials