My Kindle Paperwhite 2 has been
jailbroken using this guide, and two options stands out with regards to ebook software.
FBreader (by Dzha)
fbKindle (by andy wooden)
That's
according to this thread.
But I wonder, which is best? I would like to be able to sync my reading status on FBreader across all platforms (I have FBreader on my cell and tablet as well).