Will it be possible one day to run a whole OS (e.g. an iExec linux distro specially made for that purpose) via iExec? Then one could just own a cheap low-end PC, which would emulate a high-end PC as long as s/he pays some RLC. This application would probably be much less CPU-intensive than most applications iExec will be used for, but it may be of interest for many more users.

Not part of the team but they did an AMA not long ago and there is this reply: https://www.reddit.com/r/iexec/comments/7besol/the_official_...

The biggest issue right now is that before the result of the computation is sent you need for the Ethereum blockchain to mine a new block, however as explained it's a temporary limitation so I think one day it could be possible if there is not this problem of delay. Also you should check Truebit too if you are interested by the subject.

Yes, exactly. That what we are working on. We call that the 'Energy Positive Worker'. The goal is to have a low power node (raspberry) powered by a solar panel, so that you could basically execute code and earn RLC at a very low cost (zero electricity cost). Eventually, the power that is not used for computation could be used for a LED light for instance. Hence the name.

Feel very free to ask questions about the dapp challenge or about iExec. https://iex.ec

What languages are supported by iExec?

Any language: you can deploy your legacy application and start to monetise it on the blockchain.