With some mobile web sites when visited on the iPhone, you may want to skip past the url bar (something I'm not sure if it's possible, or even worth doing on other mobiles). There's a simple solution to doing this, but doing it right is the real trick.

This is an odd one, but while I was out in Berlin, where there was pay for T-Mobile, I found that I could access Google Maps via the iPod Maps app without having to pay any connection fee.