What hardware is missing?

[Cheshyr]

I'm an embedded engineer looking to get a bit more involved.  

• We've got ASICs and their supporting DIY pcbs
• We've got custom cooling solutions
• We've got custom power supplies
• We've got 49-port USB hubs

What are we missing?  Anybody have something specific they were wishing someone would get around to building?

(I know there are a number of excellent community projects, like the Wasp Project Collective.  I'm looking for something a little more personal, specialized, or otherwise nuanced.  No promises; just looking for ideas.)

[turtle83]

What are we missing?  Anybody have something specific they were wishing someone would get around to building?

A quantum processor for mining bitcoins 

[dogie]

The answer would be a scypt based ASIC - well as ASIC as you can get. It would be a bitch, power hungry (hot), the architecture would be horrific due to the memory.

but.... if you can build something cheaper than FPGAs with good density then you have a winner.

[Cheshyr]

A quantum processor for mining bitcoins  

It seems like a good idea at first, but wouldn't a true quantum processor effectively gut the foundations of cryptocurrency?

The answer would be a scypt based ASIC - well as ASIC as you can get. It would be a bitch, power hungry (hot), the architecture would be horrific due to the memory.

but.... if you can build something cheaper than FPGAs with good density then you have a winner.

Hrm.  I'm not ASIC-level, so that's beyond me personally.  I thought this was in the works from a few different angles already...
https://alpha-t.net/
http://scryptasic.org/
https://bitcointalk.org/index.php?topic=355268.0 (Gridseed GC3355)

Good thoughts.  What else?