Although the Dev Team initially announced that the new version of PwnageTool, which will allow you to update to iOS 4.1 without updating the baseband, would be available by Sunday, here we are on Monday and the team still hasn't released anything . It's not in the habit of the Dev Team to skip the possible release dates, but in this case this also happened, but more than likely this delay is independent of their will. It is not known yet when this new version of PwnageTool will be available, but I am sure that today or maybe in the following days at the latest it will be available to everyone.
Don't forget that PwnageTool is the best solution to make a custom ipsw for iOS 4.1.
