I personally don't mind the notch. Granted, I'm waiting for the X Plus, but from day one the notch never bothered me. I'm happy to see Apple heading in the current direction ... taking some risks ( like the notch ) and I'd love to see some of that risk spill over into the portables line up. The MBP and the Mac Pro need some risk-taking love.
I'm not too tempted by the Note, but I have always wondered what it'd be like going back to an Android phone. I live in those few iOS apps that are iOS only such as iTunes, iWork, Scrivener, Adobe CC apps, etc.
I think the time has come already. Save for a handful, most apps are cross-platform. The apps that aren't are very very niche and/or Apple made. MS Office, Wunderlist, Google's apps, many popular games, etc are cross platform.
For the phone anyway. Even when I was an Android user I knew the tablet apps were trash.