braggman

Does anyone have any experience with re-direct scripts to redirect mobile users? I expect them to comprise about 80% of my traffic on the site that I'm currently building. I don't want to ruin my SEO efforts by taking the wrong route in implementing this, as I hear that search spiders have issues with PHP... and PHP seems to be the primary scripting language used for this task.

My main domain name ends in .us since it forms part of a larger word. Also I have a couple .com variants of my domain name that I wish to mask the domain name for and redirect the mis-spelled users to the primary site. The mobile script will redirect to my .mobi domain.

As far as SEO is concerned should I build all of this into my main non-mobile site which then redirects the mobile users, should I build it into the mobile website and redirect the non-mobile users, or should build some sort of gateway page that performs the redirect and the SEO but isn't my main content page? I know for a normal HTML page the last option is always a no-no, but I've never used a PHP script and don't know if the redirect script brings any new dynamics into SEO. Any thoughts?