This is the Android M Easter Egg ¯\_(ツ)_/¯

Haha, Google, so silly.

Yes, my friends, that really is your Android M Easter Egg – for the moment. 

Edit:  For those who are finding the “M” hidden as well, we are well aware of it. Tap on it a few times, then long press and you’ll get the shruggy face.

¯\_(ツ)_/¯