At the I/O developer conference earlier this year, Google announced that soon you would be able to run Android apps in Chrome OS. Today, that day has arrived. Sort of. For a couple apps anyway.
The initial set of supported apps is sparse. Duolingo, Evernote, Sight Words, and Vine are all available on the Chrome Web Store and...that's it for now. Google says it's working with "select developers" to bring more Android apps to Chrome OS "in the coming months".
However, if you have a Chrome OS device, you can try out this implementation now (sorry Windows/Mac users, you'll have to wait). Time will tell if this is enough to make Chrome OS a more serious contender for desktop apps, but at the moment it seems promising.
First set of Android apps coming to a Chromebook near you [Google Chrome Blog via Ars Technica]