I'm unconvinced... they're selling a few on eBay as a publicity stunt. Not a quantity and not $1/W. "Shipping" is when I can go online and pay the $10K for 10KW as promised.
I don't think they're putting them in weatherproof frames either for that price, so the total installation cost is not described.
In fact the whole reason to compete over efficiency is that the installation cost- frames and supporting framework- composes a lot of the total cost and depends directly on the panel size.
the reason an individual can't buy the cells right now is because they are already sold out, far into 2009. The entire production capacity of the plant has been purchased by big name sponsors of the start-up.
I hope that their success will spawn copy-cats, especially in China, and they can start cranking out tons of these.