WinPwn 184.108.40.206 has been released. This will jailbreak firmware 2.0.1. Firmware 2.0.1 has some good upgrades that speed up the iPhone and keep the iPhone from crashing so much. The 2.0.1 firmware upgrades the modem firmware and has not been unlocked yet.
I am in progress of backing up my iPhone, upgrading and jailbreaking. I will update with more info later.