From the last paragraph:

"The Machine isn’t on HP’s official roadmap. Fink says it could arrive as early as 2017 or take until the end of the decade. Any delivery date has to be taken with some skepticism given that HP has been hyping the memristor technology for years and failed to meet earlier self-imposed deadlines."

So, does anyone actually know whether significant new progress is being made on this project, or is this article just a win for HP's PR department and nothing more?