Interesting you bring up nuclear energy. I was just reading something today that stated that coal burning plants emit more radiation than nuke plants. Neither are releasing any amounts that come anywhere close to dangerous though.
At this point from what I've read I have to agree. Hydrogen does have potential, but there are a lot of issues to get through first, and you can bet it will just be switching what the oil companies are selling now. It's not going to save us any money, but would certainly benefit the environment as far as emissions go.