@Tomsem
I had tried specifying a different port like how you suggest but the browser flat out refused it, are you sure that will work using the webkit browser? It's possible that the site I tried viewing caused the kindle to reject it (my transmission bit torrent webgui) but I don't have another site to try at the moment. I'd be really happy if specifying the port did actually work because like DiapDealer my port 80 is already taken up with a different web server.
[EDIT]
I just tried this again, I remembered that I have mediatomb also running on port 49152 but any time I specify a port I get "There was an error encountered when processing your request" in my browser. I suspect that when browsing over 3G non-standard ports may be blocked, if this is the case it may even be determined by the wireless provider. Could anyone confirm if accessing a non-standard port (ie 8080) works on their Kindle? Perhaps it'd work if you were at home on wifi instead of 3G? If nobody responds I'll give it a shot when I get home from work and update this thread. It would be nice to be able to access a web library from anywhere via 3G, perhaps I'll have to forego having my nas web gui on port 80 and have my ebook library there instead
[/EDIT]