I have long been a proponent of small cheap computers. They are big enough to do a large proportion of the jobs we need done. Just being small helps them be priced low as does running GNU/Linux.“This tiny base board will be 2.7 x 3.5 cm (1.06 x 1.38 inches). There are RJ45, USB type A for USB host, Micro USB for 5V electronic power in. The base board will have some pins can be linked to other devices and so on.” Is there a lower limit to how small they can be and still be useful?
The example linked below is a bit too small to be a general purpose PC. It would be easy to lose if mobile. It might be easily buried by other stuff in a pile. Also it lacks the RAM needed for many purposes. It could be embedded in a keyboard or mouse to cover some of these issues but it still needs more RAM. It does show that Moore’s Law has about gone far enough. We are at the point where there are few if any benefits to making computers smaller and cheaper. If you can’t afford such a tiny slice of technology, you need to find a more profitable niche in the world’s economy. There could be benefit from increasing the core-count for greater CPU power but already, SoCs are comparable to my quad-core 64-bit monster that idles in my home.
We are at the stage in the evolution of IT where very soon everyone on the planet will be able to afford some IT and be connected to many others. This will change how governments and all other organizations operate. This will flush out ignorance. This will expose outrageous words or actions of any individual or organization to scrutiny. This could be a force for great good or evil but I bet good will win because there are far more good people on Earth and such technology will give the good people a chance to stay abreast of what the bad people are doing. In such an environment it is unlikely that beasts like M$ or the Assad regime could come to power let alone to hold power. A lot of human tragedy may now be fixable long before it reaches a scale too large to fix. The smartphone may well accomplish in a few years what the ballot box took centuries to accomplish. True democracy is easy to squelch when everyone is not connected. That problem is about to be solved.