Good thing I use the Kindle app....
This.
Dunno what Apple was expecting to happen. It's not going to make anyone remove their jailbreak; it's going to either:
(A) make jailbreakers revert to an older version of iBooks
or
(B) make jailbreakers switch to Kindle, thus losing sales
In addition to fostering ill will. Look at Sony; the PS3 remained the least-hacked system for two years, and allowed a very limited degree of system modifications since you could install Linux through OtherOS. Hackers, meanwhile, would hack the Wii and XBox 360 just to let them do stuff like install Linux, and then
other people would build off that work for piracy.
Hackers found a way to develop homebrew using OtherOS...and then Sony, worried it might
eventually lead to Piracy, removed the OtherOS option.
The angry hackers whom Sony removed functionality from then paid attention and had the PS3
completely hacked and able to run anything (pirated software included) in short order, and far worse than the other systems have been hacked.
Pity they haven't learned their lesson yet.