So the fight is on two parts of the board: the part where consumer sees and the part where only developer sees.

The next question: think iCloud -- or DropBox even -- will provide Google Wave technology? I have no idea how useful that would be to all apps. But it would benefit an app such as Ulysses.

Ulysses markets itself as a writer's editor. (To my programmer's eyes, it looks more like an IDE). It distinguishes itself in the market with a very strong document management system. However, it does not have auto-save, and the backups are kept in some obscure location. That's ripe for iCloud or Dropbox integration. However, it can go farther -- some method to sync changes with editors and proofers without having to export to Word.