Dandy, but Chrome Apps will only ever be marginally more widespread than ChromeOS.
Q. Why? A. Node-WebKit Apps aren't crippled with the sandboxing of the Chrome App API and easily let me target Win/Lin/OSX without requiring the Chrome runtime.
FWIW, I like ChromeOS and would buy a couple of ChromeBoxes for family members, if they had reasonably sized hard drives (200+GB)(SATA) for pictures & videos, and weren't so dependent on Google Drive. Non-tech savvy _NEED_ ChromeOS, they don't need GDrive.
How many of us need yet another IDE for HTML5, CSS & JS? Not me, thanks though. Please Google, get back to autonomous cars and get serious about ChromeOS already.