I see it as work too. Maybe we should reject this rational thinking and focus on something we like.
Personally, I like the idea of jumping ship to Arc/Nu (or merging!). Then we can port the Arc/Nu compiler to Arc/Nu and extend it to compile itself to every platform; who needs other implementations? :-p As I understand it, Arc/Nu has a fully reorganized codebase and very few entrenched users, so it's reasonable to refactor it again and again.
Arc/Nu has a "3.1" folder and a "nu" folder, so the website could introduce the Arc 3.1 documentation as though it's really just documentation for a compatibility mode. ;) Meanwhile, anyone who has a passion for consistency can work on documenting this mode in the same way I described above. :-p
Come to think of it, I might just be outlining more and more work. If Arc/Nu somehow becomes a vibrant community project, it's design by committee, right? I'm going to get some sleep.