So I guess the point of this thread, for me, was to see if anybody would be interested in dedicated hardware to do what GP hardware and a dedicated live boot CD already does very well. It seems to me that if you generate enough wallets with a CD boot you won't need to reboot to generate wallets as often as you'll need to reboot to generate transactions. So there probably isn't a market for an air gapped wallet generator unless it also generates air gapped transactions.
Well, just as a closing comment I'd like to say that I disagree with the highlighted text above.
I still believe your initial idea, of just printing one-address wallets from an offline, air-gapped device is still very valuable. If it were available right now, for the right price (<$20) I'd be looking to get one or two ASAP, and I'm not worried that my system is compromised yet. I can handle my own transaction sending. But a quick and easy way to spit out addresses for storage (with accompanying private key) greatly simplifies things.
Just my 0.02btc.