Re using appsfrom Android.
I don't see the problem, Google are already sorting the ability to only load as much of an app as need to view what you want. So if you have a link it just loads part of the app.
Add to that API's being sorted to work with either OS (As they are already doing with android apps on ChromeOS) and I don't see a problem.
If they came out with an OS that was more secure than Android, ran all the apps and had other added features plus fast updates I would buy it tomorrow.