Apple states that although the present invention is primarily described in the context of a browser-based word processing system, the present invention could in fact be more generally applied to any system that renders textual information in a platform-independent manner and is not meant to be limited to word-processing systems or browser-based systems.
Boldfaced emphasis added by me.
Looking at that patent, it’s all obvious.
The breakthrough is the platform-independent rendering, not word processing collaboration.
The Trojan Horse is the word processing app. The invader is the rendering engine.
If there is any actual technology behind this — and not just a flowchart for an idea — then we don’t have to pay any attention to Kindle format or ePub format for eBooks.
Apple has just announced their upcoming deaths.