A web page in a sidebar? I use a window manager that allows me to move and resize and tile windows. I can just spawn another browser window and put it on the side. Or.. I could use that fancy tabbed browsing that's been around for quite some time. Sigh.
A video in a sidebar? Same deal. Why would I watch a tiny version of a video anyways? I'd just put it regular size and in another browser window.
Come on. Why was the programming time wasted on that nonsense?
I do, however, like the little nod they give to Okami in their demo video.