Youtube videos will still play if you have a direct link to their page; you can't now see the video description, comments or other suggested videos, though. I have the Youtube Center script installed, which may be helping. Also, if you spoof as iPhone you can access the Youtube homepage, although it not showing any thumbnails. As an aside, I was rather surprised that I managed to get into Gmail yesterday by spoofing as iPhone to login and Safari to actually look the mail page itself. Normally the Google web-aps just fail with OWB.
However, OWB is becomming progressively more unusable. Given the impressive advances in the new 'Wayfarer' web-kit derived browser for MorphOS I'm going to be getting a MOS machine for web-browsing. I'd really like to do this after they move to x86/64. but if that's looking too far in the future I may be forced into get an ancient MacBook. As Hollywood is equally happy on both and my primary productivity applications are all still old 68k ones anyway (principally PageStream and FinalCalc) it should be quite easy to run a mixed set of AROS and MorphOS machines.
Cheers,
Nigel.