More correctly, around 90% has been assembled into a final draft, the remaining 10% is considered "insignificant". This seems to be the pattern with eukaryotic genomes - I wonder why? I've heard various explanations, from "not worth the effort/expense to get the last bit" to "some regions can't be sequenced". All those nasty introns and telomeres - give me a nice microbial genome anyday.

