When a textarea contains too much text to display at once, it needs to be scrollable. On Android, at least sometimes, it is; even if the textarea isn't configured with "scroll: 'vertical'", when I tap it and the keyboard pops up on my Nexus One, the textarea is vertically scrollable. (This happens in my own app. It doesn't happen in the "Bio" field of the Kitchen Sink app, and I don't know why not.) But on iOS devices, both the simulator and my iPod Touch, trying to scroll the textarea merely scrolls the whole screen. (Even if the screen is filled by a panel configured with "scroll: false", it becomes scrollable when the keyboard pops up.) This happens regardless of the scroll config of the textarea or the panel filling the screen.