Got to the Economist article on Boeing somehow last week. It's not very well laid out. The first picture is actually the X-50A Dragonfly (combining helicopter and fixed-wing dynamics; unmanned at this stage) more. The second picture is the SonicCruiser. The one without a picture is the Blended Wing Body (BWB).

Heck, you might just want to go to the Phantom Works ->research and development projects -> Advanced Systems and browse. Very interesting.