[nikdaheratik]

It should always be at the "bottom" of the screen. If the "bottom" doesn't match whatever the bottom of your app is, that's likely because the app is configure to only appear in landscape or portrait so it only responds to a large enough position change to trigger a 180-degree flip. Basically, this isn't as simple as it appears because of the potential interactions between app types and what the OS supports.

TL;DR: If you have a landscape only app, trigger the lock before you launch the app and it should stay in place.

[sivanmz]

It's always at the "bottom", but the bottom changes, which requires changing the grip to reach the control, which triggers another rotation and so on.