I know this is too late.
I just love this device. I know you too. I tried searching for the psd but could not find a good one.
So i decided to make myself one.
And here it is.
This is a full scale psd file. That means the screen actually covers 1280x720 px so that you can put your screenies without resizing it.
This is free for personal use.
Please give proper credits if you use it.