You Tube have introduced a couple of new projects. One is a special section for mobile videos. Have only had a look at two and they were surprisingly good. Had expected the technical quality to be poor.
They have also got a Test Tube an ideas "incubator" which allows you to try out new "recipes and concotions" while still in the development stage.
One is an Audio Swap ( an attempt to solve the problem of music copyright) which offers you the chance to replace your aduio with officially licensed music…..mmmmm
The other is Stream..chat with others who are watching the same videos as you.
You are invited to "jump in and play around."