The API was developed jointly by Adobe and Chrome, so its not Chrome or the API causing it, it's both parties wanting a better solution. It makes it cheaper for Adobe to support more platforms with less development hours.
Adobe has stated (not in any press releases, but from the mouth of employees) that they will work with any other browser wanting to implement the same API.
Adobe has stated (not in any press releases, but from the mouth of employees) that they will work with any other browser wanting to implement the same API.