Last week, we reported on Google's App Runtime for Chrome (ARC) beta release. Its goal is to bring apps from the Google Play Store to ChromeOS through an Android stack built atop Native Client. They are sandboxed, but still hardware-dependent for performance. Since then, vladikoff on GitHub has published ARChon, a project which brings that initiative to desktop OSes.
Image Credit: ARChon Project
To use Archon, you will need to use an x86-64 version of Chrome 37 (or later) on Windows, Mac, or Linux. This project is not limited to the handful of ARC-compatible apps that Google officially supports. The Android apps need to be converted into Chrome extensions using a tool, also available, called chromeos-apk. In fact, the example app is an open source version of the game, 2048, rather than just the four launch apps from Google.
Whether Google intends to offer this, officially, with their Chrome browser is the most interesting part for me. I would prefer that everything just works everywhere but, failing that, having a supported Android platform on the desktop without dual-booting or otherwise displacing the host itself could be interesting. And yes, Bluestacks exists, but it has not been something that I would recommend, at least in my experience of it.