Starting from 0.9.5 there is a way to make additional plugins (of the 'mobile' group) for device checking.
So, it's possible to make a plugin of such a form (this is ipad.php file, making of corresponding ipad.xml file is trivial)
<?php
defined('_JEXEC') or die('Restricted access');
jimport('joomla.plugin.plugin');
class plgMobileIpad extends JPlugin
{
function plgMobileIpad(&$subject, $config)
{
parent::__construct($subject, $config);
}
function onDeviceDetection(&$MobileJoomla_Settings, &$MobileJoomla_Device)
{
if(strpos($_SERVER['HTTP_USER_AGENT'],'iPad')!==false)
$MobileJoomla_Device['markup'] = '';
}
}
For more examples look at /plugins/mobile directory.
PS. The plugin should be ordered to be runned after 'Mobile - TeraWURFL' plugin.
(just a quick site i threw up to play with today)