A new OTA update (.28) is rolling out for the Asus Transformer Prime which brings the coveted Face Unlock feature of Android 4.0 to the quad-core tablet. The other changes in the update are a few stock browser tweaks, and a new notification for when the GPS dongle is attached to the device.
If you haven’t already got the update notification, go to Settings » About tablet » Software Update and click on Check Now to check for the update. Do let us know if you notice any changes or improvements, in the comments below.