wp-mobile-edition

This plugin has worked great for me. I had to log in my Cpanel and edit some things to my liking, and add logo etc.,edit header to be in english and a couple things tweaked some while i was in the files, but that is still a Lot easier than building one from scratch! and otherwise it seems to work great and is an easy and free way to get yourwebsite mobile ready, I Like it!
here is an example on a site I am just starting,
m.artistpromo.net

(I am also using this plugin on two other websites.)