If you're looking for a fun electric transport option, and an electric bike is too big and too tame, and a Segway is too big and too expensive, you might consider getting one of these single-wheeled electric skateboards, which leave your hands free and can carve like a board on your commute.
The Onewheel, from Future Motion, sports a big fat single wheel, right in the middle of an aluminum and maple deck, and is self-balancing and controlled by the rider's weight. Leaning forward starts the board rolling (at speeds of up to 12 MPH), and leaning backward slows it, stops it, or reverses it, and turns are made by leaning in the desired direction.
The Onewheel's single wheel is powered by a 500W direct-drive hub motor, which gets its juice from a 48V Lithium nano-phosphate battery. The battery is said to be good for a range of about 4 to 6 miles, and can be recharged in as little as 20 minutes (with fast charger). Onewheel weighs in at 25 lbs, and measures 30" by 9" by 11.5".
According to the company, they began "with a vision of bringing the amazing feeling of snowboarding on powder to the streets", and claim that it feels like flying:
Onewheel is currently being crowdfunded through a Kickstarter campaign, and if you'd like to be one of the first to own this unique ride, backers at the $1299 level will receive one from the first production run (estimated to be in Sept. 2014).