OK, I am the ONE weird guy who likes the home screen in portrait mode only. Is there any way to set this, but still allow other screens to rotate. My N7 is NOT rooted.

OK, we know N7 is not supplied with Flash. I lifted this line from the instruction manual 'Flash isn’t available with Chrome for Android. If you need Flash, download the Browser from the Google Play Store app'
SO,
1) Is it as simple as that? Just (re) download Chrome from the app store to effectively have it available?
2) Would doing so overwrite the existing app, or add another version of Chrome, thereby using up valuable storage.

And no, sadly my N7 is not yet delivered.