My brother and his wife just got new service with AT&T and took advantage of the free 3gs iphones and wanted to know if I would be able to jailbreak them for them. They didn't really want the tethered jailbreak which is all that is available right now on the ios5 but I am not sure if 5.1 is out yet and if there is a jailbreak for it yet. So questions are: Do these free 3gs's have up to date firmware or is it a good chance they may have 4. something software? If these come with 4.3.5 is that still a tethered JB? Also, would 5.0 really slow down the 3gs since it wasn't designed for this? What is my best bet for these, depending on what firmware is? If 4.3.5 is on this and is still a tethered JB and tethered was my only option would be be best to stay on 4.3.5 or go to 5.0 on a 3gs. Love ios 5 features but don't want to slow these phones down too much.