Yes, that sounds like it would be very useful.
Why would you run out of IP addresses? I currently use
dyndns.org (proprietrly sadly) to redirect to my apache https, but something using free software would be awesome.
No reason anymore, Hellekin just corrected me.
But I am assuming that a single dynhttpd front-end could serve multiple sites, so the number of IPs available to run the front-ends is the issue. If they run as p2p, where you front for someone else (since you have a routable IP), then you still end up with far fewer front-ends than back-ends, and old-style SSL needs a 1:1 mapping of IPs to domains. Looks like with Server Name Indication, this isn't a problem, so yay!