There is another Kickstarter campaign. The project developer is asking for funding in order to build the smallest C64 Emulator.
The hardware will have an open source software that will emulate the Commodore 64. The interesting part of this project is that the sound won’t be emulated, and the only way to get the sound working on this device is using a real SID or a replacement like Swinsid.
The project goal is modest: kr30,000 or around USD$3,500. So far it has gotten only about 15% of that amount, and there are still 19 days to go.
If you think you can make use of a very tiny device for your Commodore 64 needs, take a look at this project and if you are interested, consider to back it. If funded and successful, the device is expected to be delivered on Feb 2016.