How to target CSS for iPad but exclude Safari 4 desktop using a media query?

I use PHP to do that. I isolate the plateform from the USER_AGENT string. Then I only have to use a if($plateform == 'iPad') {.....} It's that easy!

This is a quite simlifying demonstration: http://css-tricks.com/snippets/css/ipad-specific-css/

 media="only screen and (device-width: 768px)"

Thanks to Mislav Marohnić for the answer!

This works for iPad in either orientation and seems to exclude desktop Safari.

When I was testing (min-device-width: 768px) and (max-device-width: 1024px) I could see Safari 4 using the styles or ignoring them as I widened or narrowed the window. When testing (device-width: 768px) I tried to make the desktop Safari browser exactly 786px wide, but I never got it to see the styles.