I'll check them out. But the hype about cloud is that you are supposed to be able to change, expand, shrink your hosting with no downtime. That is the hype I've seen. No boundaries type of BS.
I believed it until I had to work on a client's site hosted in the cloud. She had been sold on the same thing. I went it and moved the memory slider to double the memory. I then get the message - We will start working on this process and then move your site to the config when done. WTF? Why a move? Why not just bam? Oh... because they are creating a new virtual machine/VPS and just migrating everything using the same IP.
The cloud may just be the marketing term for the layman to catch up with people who already know how to do it. The building materials are the same but we are getting new tools. I pretty much believe the same thing about most Social Media. I have yet to see something in Social Media that I have not been doing for a long time. Sometime the tools are even worse and people fawn over them.
So marketing can mean taking something that is complex, removing most of the cool features, making it goofball simple, and selling the masses on it. Then after a couple of years worry about making money on it, and add all of the cool features back in.