I tried the virtual classroom for the new version of WiZiQ. I think it's great that we can open the right side windows and move them around. Even better, we can adjust the size. This is exactly what I need.
One thing though. I think for students it might get confusing at times where to move this chat window. Before you make a final release and put it into action, I suggest you also have a "fixed" mode so the text chat window can be under the whiteboard for all students to start with. They can know that the teacher won't use that part of the white board, and if it is fixed it won't look like it is covering the whiteboard.
I am afraid students might put the chat window over an area on the whiteboard I am using to explain something. This could slow down the class and cause a great inconvenience. In another virtual classroom service they have "template" settings, so when you enter the classroom the windows are automatically adjusted to the teacher's settings. This way everyone is "on the same page". No windows are covering the whiteboard.
Everything else is a great addition. I look forward to using the new classroom in June or July.