iOS 4.3.4 parachuted in to fix that nasty PDF exploit, Apple's gone and dropped another. So what'll Cupertino's latest fix today? Build 8L1 -- or 8E600 on 4.2.10 if you're rocking CDMA -- apparently nixes a vulnerability with "certificate validation," or you know, Apple's just really fond of keeping all you hackers on your toes. Either way, time to fire up iTunes, unless of course, you're already living in the future.
Update: Turns out you can still (tether) jailbreak with redSn0w. Peep the more coverage link below.
[Thanks to everyone who sent this in]