If hydrogen fuel cell cars were available, and if refueling stations were available across the country (so you wouldn't be limited as to where you could drive) -- would you be likely to buy a hydrogen fuel cell car?
What about the Chevy Volt -- scheduled for release in 2011. It is a hybrid that has a longer range (about 30 miles, which is said to be the amount most people would go in a day) battery so most local driving would be purely electric -- then plug in overnight, and ready to go in the morning, fully charged.