Item: Android developers can now package their apps into a form that will run on Google Chrome (including, and perhaps especially, Chromebooks).
Item: Google has been working to make Chrome apps behave more and more like traditional software on Chromebooks, Windows, and Mac.
Putting it together, the App ecosystem available to Chromebook users is potentially much larger, and the Android toolchain looks less like a kit for developing phone and tablet apps, and more like something akin to Adobe Air or Java– a portable app runtime.
The biggest weakness would seem to be that there are separate stores for Android and Chrome apps. I wonder how much longer that will be the case?