Apple pushed out iPhone OS 3.0.1 update to solve the problem of the SMS bug, and once Apple pushed out a new iPhone OS update those who wish to jailbreak need to wait for a solution from the iPhone Dev Team.
However according to an article on Cnet, the iPhone Dev Team has put out a Twitter that with iPhone OS 3.0.1 iPhone jailbreakers need not wait.
Apparently the current version of redsn0w and untrasn0w will work just as well with iPhone OS 3.0.1 as it does with iPhone OS 3.0, thus jailbreaking the iPhone 3.0.1 firmware already works.