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2 comments of this product found across Reddit:
dantheflipman /r/raspberry_pi
40 points
1970-01-17 20:45:01.51 +0000 UTC

http://www.amazon.com/gp/product/B014JFEU48

Edit, photos of the inside here: https://imgur.com/a/5KQHR

Edit #2... well, from last week to today, there were 13-15 of those left.. I guess we made a happy seller today, cause they're all gone now

Edit #3, I have not gotten the Pi 3 to work with this screen yet. Hold the phone

All the Edits: Looks to me like someone asked adafruit support about their TFT screens and the Pi 3, They said it's in the works, but for now, I can't get the screen to work, and it looks like an obvious problem with what's being executed in the /boot/config.txt file. As of right now there are only commands referencing the Pi1/pi2/piZero SOC's

Got the screen working in 5 minutes [Rpi 2], and found the gpio button mapping in the amazon comments:

I was able to learn which pins the switch uses here is what I found, perhaps this will be helpful to others:
GPIO4, pin 7 is the bottom side switch.
GPIO5, pin 29 is the front bottom switch.
GPIO17, pin 11 is the top most side switch.
GPIO22, pin 15 is the front 2nd switch from top.
GPIO23, pin 16 is the front, top most switch.
GPIO24, pin 18 is the front, 2nd switch from bottom.
GPIO25, pin 25 appears to be the D/C pin for display
GPIO26, pin 37 appears to be the IR
GPIO27, pin 13 appears to be the back-light for the display
SPI_CE0 appears to be used.
Usual SPI pins appear to be used. 

The case is very solid aluminum, and took 5 minutes to put together, fits together perfectly, dissipates heat well too! Check it out!

(So far all I've done with the buttons since yesterday is making the "X" button shut down the pi after holding it for 5 seconds)

Did I mention the IR receiver?