Well, I've just chucked it on my Kobo. It's updating now. Hopefully, it won't take several hours to update. I'll let you guys know how it goes on mine as well.

edit: Aaand absolutely nothing has changed. Same thing here - the release notes say 2.0.0. Sideloaded books seem fine, but still as slow as with 2.0.0. Device information has it as 2.0.2 (r41334, 7/19/12), though.

So I have no idea what's going on. *shrug*