Our very own jcf_dev has (yet again) created the necessary PwnageTool bundles to jailbreak the lastest iOS beta. If you like to stay on the bleeding edge, but want to maintain your leet jailbreak-status, check out the link below. As always, these bundles come with no support and require a significant bit of technical know-how.
Please note that many Cydia apps and tweaks will not work, and the jailbreak is semi-tethered.
Uploaded iPod touch 4g 4.3b2 bundle. Remember, I’m not giving any support for this. http://bit.ly/bIZukN