It would be really cool if the bubble and possibly also
the scrollbar could be configured to just go away
completely in full screen mode. Perhaps an option...
This would make the web page the only thing on the
screen. Currently one has to look at it all the time
(kind of like the annoying zoom buttons on the default
browser that show up any time one presses the screen,
which are even worse).
New users, of course, should definitely see the bubble,
or they wouldn't know it was there.