Espruino-Boy?

Anyone seen this? https://www.kickstarter.com/projects/903888394/arduboy-card-sized-gaming

I'd thought about doing a tiny Espruino GameBoy yesterday, and today Mark sent me an e-mail asking how hard it might be. I just knocked up something really simple... it has:

• one of the Nokia 5110 LCDs mounted straight on
  
• surface mount Pico on the back
  
• 6 surface mount buttons
  
• a JST battery connector / coin cell holder / supercap on the back
  
  

I guess it could do with some kind of piezo speaker too.

Any thoughts? Eagle files are here: https://github.com/espruino/EspruinoBoard/tree/master/Pico/EspruBoy

If everyone thinks its ok I'll send it off and get a few made. No promises it'll actually work :)

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