I was just looking at the video of the X6 and i wondered if it would be possible to have the menu and section of it not display on a black background, but instead have some of the background shown, so more transparency. Can this be done? It would make give the phone a much fresher look.

Oh.. the contacts slider on the mainscreen in the video, that would be nice too! : )

I'm not quite sure exactly what you mean, but something may be possible by modifying /usr/share/hildon-desktop/transitions.ini