Hopefully the price and range will get much better. That $600/month they advertise is only to a select few who they intend to use on a trial basis. I'm sure when these cars go on the market they will be very high priced in the beginning at least until the 'economy of scale' kicks in. Actually the driving range at 270 miles is not too bad and I'm pretty sure they can make big improvements on that.
http://blog.wired.com/cars/2007/11/honda-fcx-clari.html