this is what i use
#iphone ipod detection
RewriteCond %{HTTP_USER_AGENT} ^.*iphone.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#Ipod detection
RewriteCond %{HTTP_USER_AGENT} ^.*ipod.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#android detection
RewriteCond %{HTTP_USER_AGENT} ^.*android.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#opera mini detection
RewriteCond %{HTTP_USER_AGENT} ^.*opera.mini.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#blackberry detection
RewriteCond %{HTTP_USER_AGENT} ^.*blackberry.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#palm detection
RewriteCond %{HTTP_USER_AGENT} ^.*up\.browser|up\.link|mmp|symbian|smartphone|mid p|wap|vodafone|psp|pocket|kindle|mobile|treo.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#nokia detection
RewriteCond %{HTTP_USER_AGENT} ^.*nokia.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#Samsung detection
RewriteCond %{HTTP_USER_AGENT} ^.*sgh.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#Sony Ericsson detection
RewriteCond %{HTTP_USER_AGENT} ^.*sonyericsson.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#Playstation Portable detection
RewriteCond %{HTTP_USER_AGENT} ^.*psp.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#Motorolla detection
RewriteCond %{HTTP_USER_AGENT} ^.*mot.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#HTC detection
RewriteCond %{HTTP_USER_AGENT} ^.*htc.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#LG detection
RewriteCond %{HTTP_USER_AGENT} ^.*lg.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#iPAQ detection
RewriteCond %{HTTP_USER_AGENT} ^.*lg.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#Nokia detection
RewriteCond %{HTTP_USER_AGENT} ^.*nokia.*$ [NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]
#mobiles detection
RewriteEngine On
RewriteCond %{HTTP_ACCEPT} "text/vnd.wap.wml|application/vnd.wap.xhtml+xml" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "sony|symbian|nokia|samsung|mobile|windows ce|epoc|opera" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} “mini|nitro|j2me|midp-|cldc-|netfront|mot|up.browser|up.link|audiovox”[NC,OR]
RewriteCond %{HTTP_USER_AGENT} “blackberry|ericsson,|panasonic|philips|sanyo|shar p|sie-”[NC,OR]
RewriteCond %{HTTP_USER_AGENT} “portalmmm|blazer|avantgo|danger|palm|series60|pal msource|pocketpc”[NC,OR]
RewriteCond %{HTTP_USER_AGENT} "acs|alav|alca|amoi|audi|aste|avan|benq|bird|blac| blaz|brew|cell|cldc|cmd-" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "dang|doco|eric|hipt|inno|ipaq|java|jigs|kddi|keji |leno|lg-c|lg-d|lg-g|lge-" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "maui|maxo|midp|mits|mmef|mobi|mot-|moto|mwbp|nec-|newt|noki|opwv" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "palm|pana|pant|pdxg|phil|play|pluc|port|prox|qtek |qwap|sage|sams|sany" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "sch-|sec-|send|seri|sgh-|shar|sie-|siem|smal|smar|sony|sph-|symb|t-mo" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "teli|tim-|tosh|tsm-|upg1|upsi|vk-v|voda|w3cs|wap-|wapa|wapi" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "wapp|wapr|webc|winw|winw|xda|xda-" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "up.browser|up.link|windowssce|iemobile|mini|m mp" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "symbian|midp|wap|phone|pocket|mobile|pda|psp" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} “smartphone|rover|ipaq|au-mic,|alcatel|ericy|vodafone/|wap1.|wap2.|iPhone|android”[NC]
RewriteRule ^(.*)$
http://namobile.naughtyamerica.com/t...jU0NDoyNTo0MA/ [R=301,L]