SwitchRotation[Free]WindowLock

Can be switched from the status bar to switch from an automatic screen rotation.
Because it is accessible from the status bar, you can quickly be switched at any time.

For example, access is possible even during operation Brotha Internet, time to move to Android Settings screen will disappear.

[Behavior of the application]
Resides in the status bar, change the screen orientation settings with one tap.
Because it is a small application, saving of memory is possible.

[For edition Advance]
"WindowsLockAdvance" to those who changed to (paid version) has the following additional features.
# You have the ability to remove the icon in the status bar display.

[Access to the settings Android]
Changing the general settings of the system
Switch to the ON or OFF only # automatic screen orientation settings automatically.

[Tested]
Xperia x10 v2.1
Xperia x10 v2.3.3
Xperia acro v2.3.4
Galaxy S3 v4.0.4

Emulator v2.3.3, v4.0.3