Last modified: 2012-04-12 23:33:19 UTC
When the page orientation changes, the length of the page changes as text and images reflow. iScroll needs to be refreshed when this happens, or it ends up being impossible to scroll to the very end of the page after changing from portrait to landscape orientation.
Confirmed fixed in dc79519dacc004d2e15bb0db3dc4b1cc6cedd645 'Fix scrolling after orient change on iOS 4.x'