Stephen says, I’m excited today to be able to announce the launch of our programming lab—an environment for anyone to learn programming and computational thinking through our private language. post 
Press Shift+Enter to run each piece of code and see what it does—or edit the code first and then run your own version. The idea is always to start with a piece of code that works, and then modify it to do different things. It’s like you’re starting off learning to read the language; then you’re beginning to write it.
In the past one could use a toy programming language like Scratch, or one could use a professional programming language like C++ or Java. Scratch is easy to use, but is very limited. C++ or Java can ultimately do much more, but you need to put in significant time—and get deep into the engineering details—to make programs that get beyond a toy level of functionality.
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The language has an integrated knowledge base. That is one step ahead of an integrated database which has been a long time coming and continually disappoints.
I've quote Stephen's announcement in fair use and lightly edited it for clarity. I've removed the parenthetical mention of knowledge base and replaced it with my own assessment.
My version is in the dialect of English I might call Wardish. Stephen's expression of personal excitement may have started in Stephenish but that version has not survived through to publication by the marketing department. Sad.