The press release went out this morning with the headline, Acquia Debuts Node.js and Headless Drupal on Acquia Cloud.
The subhed: "Company Expands Upon Drupal Cloud Solutions for Web and Flexible Content Applications."
Acquia CTO (and Drupal creator and Project Lead) Dries Buytaert added some helpful context to this development in a blog post.
Here's what the User Interface looks like:
Documentation: Node.js and Acquia Cloud