From the Project Gutenberg Newsletter:
Help create the "http://m.gutenberg.org" web pages!!!
We are working on making all our eBooks optimized to do their best on iPads, iPhones, iPods, cellphones and PDA devices, and to do our web pages to the same degree.
Let us know if you have any of these and can test them, or would like to optimize for any other devices.
There are 4.5 billion such devices in the world, versus only 1.15 billion computers, and more and more readers, in spite of what the pundits say, are surfing, reading, and everything else on such mobile devices.
I'm looking at it right now, and I have to say I think it might actually have a more usable design than the main site. I'm not being snide; I really do prefer the mobile site.