I need advice about mobile platform!

Anybody recommend me please some script or good soft for making websites mobile versions. I am interesting in wordpress platform, joomle if somebody know how to convert websites from .php ajax too, tell me please how to do this becouse it will be grate.

Thanks beforehand.

A simple G search helps from time to time

^ For WP. Although it's more for making a mobile version of your blog, rather than a site.

Also, a thread like this is better in the mobile section (you will get more replies).