Can you really identify apple iphone browser agent inshtaccess and redirect the consumer towards the correct apple iphone page?

Sure you are able to -

   #redirect mobile browsers
    RewriteCond %{HTTP_USER_AGENT} ^.*iPhone.*$
    RewriteRule ^(.*)$ http://mobile.yourdomain.com [R=301]
    RewriteCond %{HTTP_USER_AGENT} ^.*BlackBerry.*$
    RewriteRule ^(.*)$ http://mobile.yourdomain.com [R=301]
    RewriteCond %{HTTP_USER_AGENT} ^.*Palm.*$
    RewriteRule ^(.*)$ http://mobile.yourdomain.com [R=301]

Obtained from here

Just a little Searching, even includes a handy generator. http://detectmobilebrowsers.mobi/

To increase @Tommy's response, if you wish to go through the URI, alter the RewriteRules towards the following:

RewriteRule ^(.*)$ http://mobile.yourdomain.com$1 [R=301]

Otherwise you will be redirecting all demands towards the rv page (though that could be what you would like).