I think number 1 could be done, but not like Evernote did.

It's been what? 3 years since they released their javascript app, and they still didn't rewrite some important old features. Just last week we got back the option to start writing a note in the title instead of the body.

3 years!

I could write an entire Evernote competitor from scratch in 3 years, as a single developer (as a javascript app, not as multiple native apps).

And they STILL don't have reliable note-synching.

It took them too long, and their app is too crappy. But a GOOD rewrite would have worked just fine.