It's been mentioned on Hacker News a few times before, but my project PageKite (and showoff.io and localtunnel) is designed to help out with quick web demos and

It's been mentioned on Hacker News a few times before, but my project PageKite (and showoff.io and localtunnel) is designed to help out with quick web demos and collaboration. Getting started is now two lines: curl http://pagekite.net/pk/pagekite-0.4.py >pagekite.py python pagekite.py 80 SOMENAME.pagekite.me ... answer a few questions and whatever is running on port 80 will be visible as https://SOMENAME.pagekite.me/ https://SOMENAME.pagekite.me/ within moments, almost no matter what kind of network connection you have. :-) There are also .deb and .rpm packages available for heavier users.