We already know that Chronic-Dev is hard at work to get GreenPois0n ready for the first public iOS4.1 jailbreak. We've reported on it in the past, and while we don't have a whole lot to go by, it's looking pretty obvious that something is in store for the very near future. We don't know what gives it away, but it could be the skull made of a slightly modified Apple logo. Check out the site here: GreenPois0n.com
A jailbreak using the A4 exploit will mean that the exploit can be used until Apple actually does a hardware update that discontinues the A4 chip. That probably won't happen for a while. Come to think of it, the new Apple TV runs on an A4 chip…oh the possibilities.
We hope to hear more soon.