Youtube came out with an application for S60v5, and I want to show you how it looks. I think it is optimized for the Nokia 5800 because they don’t show the Nokia N97 as a supported device. It works fine though. Take a look.
You can also watch this video in HD on Youtube.
Scrolling is smooth and responsive. My only complaint is that it doesn’t utilize the whole screen when playing videos. You should be able to download it at m.youtube.com but if you don’t see the link, install it from here via Nokiaaddict.