First hand information from the annual Piaggio/Vespa USA dealer meeting in San Antonio:
Call it cool, call it unique, but don't call it an MP3. At least not on U.S. soil anyway. The Piaggio scooter known worldwide as the MP3 will be coming to the U.S., but it won't be called the MP3 stateside. The not yet named in the U.S. Piaggio "three wheeled scooter" was the talk of the show. Current estimates are for this unit to be available in the first quarter of 2007. The initial model offering will use the 250cc fuel-injected engine also found in the GTS and BV250. MSRP will be around $6999 when it does show up stateside.
Some unique features (besides the two wheels up front) are a separate park brake with its own two piston caliper, and an electronic stability switch that allows the three wheeler to hold itself upright at a stop light or when parked.
Here are some up close and personal pictures of this unique machine.