Recently in his blog, Geohot stated that he wouldn’t fix purplera1n to work with fw 3.0.1.
via his blog:
“Someone enterprising out there could probably fix it, it’s just the kernel patches that are in the wrong place. Exploit and 99% of payload will work fine. But otherwise, purplera1n RIP. It was really more proof of concept to show whats possible; same thing with purplesn0w.”
“If I do another tool release, it’ll hit the ipt3 and ra1nydayless 3GS. Told you I had more holes.”
So possibly in the near future, he’ll have it done again. Until then RIP purplera1n! 
Not yet confirmed about purplesn0w
