Since getting an iPod Touch I’ve been looking to make my websites more accessible to mobile devices now that I actually have one to test on. 
I found this awesome WordPress plugin called WP-Touch which makes it brilliantly simple to make you site mobile friendly, at least to Apple devices. It’s as simple as installing and activating the plugin. You’re good to go with the default options but there are plenty of options available for you to tweak if you feel the need.
WordPress and it’s ecosystem of plugins never ceases to amaze me. A big thank you to the WP-Touch coders. 