The iPhone 4 has been jailbroken to allow full root access. It is not available to the public yet, but should be very soon.

Planetbeing was the first person (chpwn was second) to get the root shell and SSH using the userland jailbreak code Comex developed called Spirit. Comex has not updated spirt because he still has not got an iPhone 4.

Great new's for all who have an iphone 4 with 4.0!

Realese's will be posted on here. stay tuned

This is not a baseband exploit, only a userland jailbreak. but remember to backup your shsh's before upgrading when it is released.