Do you read that to mean that all standard Aqua scrollbars will be rendered as overlay scrollbars in Lion? My initial impression was just that the overlay versi

Do you read that to mean that all standard Aqua scrollbars will be rendered as overlay scrollbars in Lion? My initial impression was just that the overlay version will be made available to developers. That said, some OSX apps already use them, so I'm not sure why it has been highlighted as a new feature of Lion... any thoughts?