RE: Hi, I’m William Mougayar from Toronto, Canada. I'm an investor & author of The Business Blockchain – the first business book that fully explains the blockchain’s implications on business.

[wmougayar]

It would be an interesting development once they have completed the work on it, because it has some attractive scalability features.My understanding of POS is that it is still works in progress, and there is some ongoing research and development that continues on it. The Ethereum blog is the best place to follow it https://blog.ethereum.org/.