iJailbreak?
I don't think there's any rule about talking iDevices and Jailbreaking - if there is, I'm sure a mod will remove this.
I see the new jailbreak for iDevices is to be released today. The bigger question is: is there any reason to want to update from version 5.1.1 which I have now, to version 6.1? The last I heard was that the version 6 maps are a bit unconventional (ie they move towns around a bit), but I'd assume that's been fixed by now.