First, Google it and read the details, it will only be available to the masses when the refueling infrastructure is in place, till then it is a conditional lease.
I’d like to haqve one to park in my living room, a gorgeous car to be sure!

Prototypes are actually already in use in the L.A. area. It splits hydrogen off from natural gas for fuel, so you use a device to fuel it at home. But you probably already knew that.

According to this page, dated November 14 2007, limited marketing to begin next summer:

Look for hydrogen vehicles by the middle of the century at the earliest.

i believe i saw it somewhere in a magazine that it would be available in 2010 2011 but there is something coming out to replace the honda fit as it is the last model year for it