The great people over at iPhone Dev Team have received their 2.2 Firmware and have already confirmed it jailbreakable. What this means is that Apple has not upgraded the security of the iPhone and the current method of jailbreaking works just fine. This is good news for all who want to keep using their ssh and tethering apps that Apple refuses to give us.
Also, the 2.2 firmware expires in November, but that does not mean there will be anything significant. This could mean it is just in preparation to some announcement in January at MacWorld, but you never know…