Just a quick one but a feature that I stumbled upon which really hasn’t got the web-time it deserves is the ‘Optimised view’ switch in the Opera browser. This is great for times when you use the zoom keys to make a web page’s text bigger. With this set every web page’s text is scaled to fit to the zoom level you currently have the device set at. So instead of zooming in, only to be presented with an unergonomic horizontal scroll bar, the text layout is adjusted accordingly. Wonderful.
Find this setting in Opera under View->Optimised view.