Large tanks of pressurized hydrogen

Greetings list, I recently ran across this company: http://www.hydrogenics.com/hyups.htm They're marketing a hydrogen fuel cell generator to the telecom market. I know they have a few competitors (Ballard Power Systems?), with more companies in the R&D phase of product development. Would you store a large tank of pressurized hydrogen in a downtown Manhattan office building? Should people legally be allowed to? Does anyone think fuel cell technology is a viable replacement for Diesel generators yet? NY Times article, 11/19/02 for those who haven't seen it yet: http://ufalocal94.org/news_stories/nytimes/nytimes_11_19_02.html