How would I go about setting up an intranet, which I could broadcast via WiFi from my laptop? I’d like to sit on planes, trains etc. and broadcast a free WiFi signal which oaded nothing more than a website on my local server. That way I could run a little chat app and chit-chat with all the other people on the plane/train. Plus, I could cache some interesting web pages, news etc. for them too.

Has anyone out there done this before, or have any tips?