What do you think of this proposal by the people behind Spreadcoin?
http://spreadcoin.info/news/proof-of-bitcoin-node-white-paper/They are proposing an idea called "Proof of Bitcoin Node". I only made a quick skim on the link above and I have not fully understood it well, but the first impression I got from it is that PoBN is basically another layer on top of Bitcoin that gives incentive to the people running Bitcoin nodes thru big data mining.
Now I am not much of a technical person so it would be nice if someone explains what Spreadcoin is trying to achieve and how big data plays a role in their idea.
I am a member of the Spreadcoin community and can probably lend a hand in explaining what we're trying to do. I don't know that this is the best place to do it. However, there is definitely development going on. Feel free to check out / post in the forum here:
https://bitcointalk.org/index.php?topic=1045373.4700We currently have one very dedicated and highly principled developer working on it right now. However, more devs would definitely help because it is a large problem to solve.
Cheers!
Edit: This is a small summary upcoming development release in the dev's words:
First of all, the spreadwallet is now
a multicoin multiwallet that can operate in SPV and Fullnode mode. 
In short, what you'll get is:
- decentralized UTXO blockexplorer that works with the nodes you host locally (on your main computer or spread over your local network)
- multihost capabilities that allow you to run multiple nodes in your local network, remote controlling them with your spreadwallet.
- easy setup and control through SSH of all the raspberry pis in your local network.
- multiwallet support for many coins, immediate use of all those coins in SPV mode.
- support for many different styles of wallets (deterministic, non-deterministic, TREZOR and paperwallets)
- update of the spreadcoin daemon to newest bitcoin core codebase