Privacy and security in cloud management
That was a truly interesting take on the hypervisor wars.
I'm a co-founder on one of the management services mentioned in the article, Mist.io. The lack of simple yet powerfull management and monitoring tools (especially for KVM at the time) was one of the main reasons we decided to built our service.
Security-wise, the whole "giving an American company access to the servers/cloud accounts that my entire business runs on" thing, makes sense, and that is why the management interface is open-source and available for in-house installations. By using the open-source version, you get to keep all your SSH and API keys locally, so no sensitive data will be stored on our servers. Here is the github url for anyone that wants to give it a try:
https://github.com/mistio/mist.io