I was recently stuck in a situation where I had absolutely no broadband connection or phone line to dial up.  What's a tech-nerd to do when in need of the internet but only able to use a laptop, cellphone and no wires?  Get this - Not only did I get this to work, but I successfully connected to my company's VPN over it and was able to work for the day, slowly but surely over the 115kbps EDGE network.  Just to push the point home, I connected to our mail server via VPN via Internet via EDGE via Cellphone via Bluetooth.  No wires needed.  The sweet part is that it doesn't cost me anything to do this because it's part of my unlimited data plan and uses no minutes.  I use T-Mobile, but will give settings to the best of my knowledge for all the other providers.