Are you a Youtube addict ? There is a m.youtube.com which is a mobile version of the most popular video site on the web.
But sadly not all videos are not available on the mobile website of Youtube.
Now the good news – If you own a S60 phone which is built on the S60 3rd Edition platform then you might be able to view full length videos on your mobile phone and even download your favorite phones to your phone or memory card.
emTube ( M Tube ) lets you do all of this for free.
It works even behind a firewall and works over wifi/gprs /edge
It worked smoothly on my E61i. Heres the screenshot
Head straight to the official website of emTube to download the stuff to your phone. Its about 750kb the zip file