In brief: The 2010 Alternative Fuels and Vehicles Expo will be held in Las Vegas, Nevada on May 9-12 and will feature special keynote speakers, experts, and "ride and drive" events.
The word

The Expo will feature keynote speakers T. Boone Pickens (founder/Chairman of BP Capital and the Pickens Plan) and John Davis (host of MotorWeek) as well as 150 experts in 32 concurrent sessions on various alt-fuel topics.
"Fleet Day" will feature a day of emphasis on products and services for alternative fuel fleets large and small. A technology showcase will allow exhibitors to show off their latest tech and a Ride-n-Drive event will allow Expo visitors to ride and even drive some alt-fuel vehicles.
And so ...
Definitely a big event this year in Vegas.
Photo credits: AFV2010