Popular mobile devices conditional tags http://clicknathan.com/web-design/wordpress-mobile-conditional-statement/ http://mobile.tutsplus.com/tutorials/mobile-web-apps/mobile-browser-detection/ http://wordpress.org/plugins/wp-mobile-detect/

mobile_detect.php

<?php function mobile_device($classes) {
  global $variable;
	$is_ipad = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'iPad');
	$is_iphone = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'iPhone');
	$is_ipod = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'iPod');
	$is_android = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'Android');
	
	if ( $is_android ) {
		$mobile_device = 'android';
	} elseif ( $is_iphone || $is_ipad || $is_ipod ) {
		$mobile_device = 'ios';
	} else {
		$mobile_device = 'not_mobile';
	}

    $classes[] = $mobile_device;
    return $classes;

} add_filter('body_class', 'mobile_device');
?>

<?php
// add conditional statements
function is_ipad() { // if the user is on an iPad
  $is_ipad = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'iPad');
	if ($is_ipad)
		return true;
	else return false;
}
function is_iphone() { // if the user is on an iPhone
	$cn_is_iphone = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'iPhone');
	if ($cn_is_iphone)
		return true;
	else return false;
}
function is_ipod() { // if the user is on an iPod Touch
	$cn_is_iphone = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'iPod');
	if ($cn_is_iphone)
		return true;
	else return false;
}
function is_ios() { // if the user is on any iOS Device
	if (is_iphone() || is_ipad() || is_ipod())
		return true;
	else return false;
}
function is_android() { // detect ALL android devices
	$is_android = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'Android');
	if ($is_android)
		return true;
	else return false;
}
function is_android_mobile() { // detect only Android phones
	$is_android   = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'Android');
	$is_android_m = (bool) strpos($_SERVER['HTTP_USER_AGENT'],'Mobile');
	if ($is_android && $is_android_m)
		return true;
	else return false;
}
function is_android_tablet() { // detect only Android tablets
	if (is_android() && !is_android_mobile())
		return true;
	else return false;
}
function is_mobile_device() { // detect Android Phones, iPhone or iPod
	if (is_android_mobile() || is_iphone() || is_ipod())
		return true;
	else return false;
}
function is_tablet() { // detect Android Tablets and iPads
	if ((is_android() && !is_android_mobile()) || is_ipad())
		return true;
	else return false;
}
?>