Just did the Evasion 6.1 jailbreak on my iPhone 5. Xeraux is right that the Cydia servers are laboring hard, but I finally succeeded in getting iBlacklist loaded onto my phone.
At long last - an effective tool to rid myself of nuisance phone calls and text messages!
Looking forward to discovering all of the new tweaks and hacks. Up to now I've been a law-abiding iPhone user.