What is this screen?

[rayjj]

Got this when I turned the phone on this morning, no clue what it is!!

 

[techguru]

It is the rescue and maintenance screen. You got it because your finger must have been pressing the center of the optical mouse when you powered on.

 

[MiXoLoGiSt]

It could also have been done by Holding the volume down button while powering on the device.

 

[shamus]

Looks like you were trying to root in your sleep