There isn’t one that I know off, however if you wanted to write a script to solve your problem then:
In Javascript:
<script type="text/javascript">
var userBrowser = navigator.userAgent;
var url = "http://forblackberryusers.yoursite.com/";
if (userBrowser.indexOf("BlackBerry") >= 0)
{
if (userBrowser.indexOf("WebKit") >= 0)
{
window.location = url;
}
}
</script>
or alternatively you could be smart and try and create a plugin. In php, I’d imagine it would have something along the lines of:
<?php
$userBrowser = strtolower($_SERVER['HTTP_USER_AGENT']);
$blackberry = strrpos($userBrowser, "blackberry");
$webkit = strrpos($userBrowser, "webkit");
$url = "http://forblackberryusers.yoursite.com/";
if (!($pos_blackberry === false))
{
if (!($pos_webkit === false))
{
header("Location: " . $url);
}
}
?>
Hope that helps