The PS3 YouTube app is now available in Europe, so you can join your North American counterparts in queueing up a bunch of baby goat videos from your phone. You don't even have to download it from the PS Store – it's just in your XMB under TV & Video Services. The PS3 YouTube app allows you to "pair" a mobile device, and then use that to search for videos to send to the TV.
You might be surprised to learn this app wasn't already there. But The PS3 YouTube app is a relatively recent development in America as well, having been released in August.