Only it's specifically made for books and other "dangerous" text, and has no social media features. Designed for very comfortable reading using industry standard formats and fonts ;)
No plans to be anything else, and will of course have mobile apps and other things so you can read illegal and dangerous books anywhere in the world, comfortably, without censorship
3. First or last tx should reference number of chunks total, to prevent more chunks from being added on in the future after the book has already become popular.
1) Author, title implemented, more metadata soon 2) HTML makes it more customizable 3) There'll be some protocol-level limitations on edits after a certain time, etc
4) If someone creates two books accidentally (won't be possible with the official client) it will only display the first one received, although if the last one is longer, theres issues