Some promising signs pointed towards that the iOS 8 was jailbreakable, we now have confirmation of this. i0n1c (well known iOS hacker) has tweeted an image showing off the ability to SSH into the iOS 8 from his Mac, this iOS 8 was installed on the iPod Touch.

i0n1c had also showed off his jailbreak for the iOS 7.1.1 last month, it could be possible the same exploits be used on the iOS 8.  These exploits will likely be saved until the final version of iOS 8 is released.