On a shared touch screen device what do you feel is the best way for one end user to prevent another user accessing certain areas of content?
I am in a little light hearted debate at the moment as to the best way to achieve this centric on whether the traditional character based password method is still superior to a gester, say, the continuous selection of a series of squares on a 4 x 4 grid.
Personally I am erring to the side of the traditional character based password being superior. This is because i believe that a user generated password would be easier for the user to remember over a user generated symbol, which in my mind is what the continuous selection of a series of squares on a 4 x 4 grid fundamentally is.
Maybe I am wrong. What do you guys think on this subject?