No going back, I said - apparently without irony.
I pressed the button marked 'Publish', and suddenly Going Back is a real thing, available in electronic bookstores all over the world (including Japan, but not Australia as yet. I know there's an Australian option out there; that's next on the list)
The temptation to sit back and wait while the royalties roll in is quite strong, but I know that this is just the start of the hard work...
Amazon and Kobo are live; a few others are still stuck in the Smashwords pipeline, including the iBookstore. More news as I get it.