Someone should create (or link to) a turnkey AWS EC2 hosted solution that mimics the gmail/calendar suite. I'd spin up a micro instance in a heart beat. Funded by selling managed registration and dns.
Are you running an real/virtual farm of Nooks and iPads? Or are you spoofing the browser agent and mimicking the screen resolution? Welcome to the neighborhood!
I threw together a hybrid of client side DOM and url2png's distributed webpage rendering farm.
This proof of concept should be enough to kickstart a team needing this functionality today.
Best of both worlds in my (biased) opinion.
:)