sign mode - scrolling behavior

[alanb2718]

In sign mode, if there is more information than will fit on a screen, OBA 1.0 scrolled slowly through the information, then when it hit the end, it scrolled fairly rapidly backward and started over. The rapid backward scrolling was really nice as a visual indication that the display was about to start again. OBA 2.0 doesn't seem to have this -- it just seamlessly starts scrolling again and it's hard to notice when it has started over. Could the rapid backward scrolling be implemented again?