Motorola have announced a DROID RAZR android smart phone.
The Motorola RAZR V3 of 2004,was a clamshell (flip) phone.
Unfortunately its 2011 namesake is not a flip phone. There appear to be few flip-phone Android smart phones available.
The Motorola A760, was a flip style smart phone. It would be reasonable to make an add-on smart phone flip cover.