Impact of mobile pages on current rankings

[theshortstack]

Morning all - I've been getting a bit of traffic recently for mobile phrases, so am thinking of putting a mobile optimised page on my site which users will be automatically directed to when they visit my site.

My question is though, how will this affect the rankings of those current pages which are trying to target mobile users.

For example, let's say I've got a page at www.betting.com/iphone which is ranking really well for those users looking to place a few bets on their iPhone.

Once I stick my mobile optimised page up anyone clicking through to this URL will be re-directed to a generic mobile landing page at a different URL.

Is this likely to effect my rankings of the original www.betting.com/iphone page at all given the fact that all visitors are being immediately  re-directed elsewhere?

Thanks very much for your help

[EricaMcGillivray]

Media queries don't redirect, but instead, display CSS stylesheets to fit different devices. 1 page to rule them all, so to say. Which means less work on your end in the long run.

[theshortstack]

Thanks for the reply, but it's not really about duplicate content - the mobile page would just contain a list of affiliate links with a brief description of each as opposed to an exact replica of the standard page.

I guess I'm just wary that if users are re-directed to a mobile page then the non-mobile page which is ranking for iPhone betting (in the example above) may suffer.

[careeron]

I would say go for media queries AKA responsive design, that way you wont have duplicate content or anything, every user is going to use the same website.

Look here http://mediaqueri.es/ for more information about mediaquries

BR
Carl