Mobile template in Facebook?

Hello,

I created a facebook tab and a fecebook app for my site (https://apps.facebook.com/tahitireviews/?fb_source=bookmark_favorites&ref=bookmarks&count=0&fb_bmpos=5_0). It seems to be working fine globally, except a few display glitches. My main concern is the fact that it displays the Desktop version of the site even if I browse from a mobile device. For facebook to display the mobile version of the site in the app, I need to provide the url for mobile template, something like m.mysite.com or mobile.mysite.com.

Is it possible to have such an url to display the mobile template? http://www.mobilejoomla.com proposes such an extension but I got my site running fine, the mobile template is just what I am looking for, so I am not willing to change it.

Thank you.

Any help on this one?