Upgraded from a 3g and just got a new iphone 4 that unfortunately has 4.2.1 and BB 3.10.01 after I ran it through Tiny Umbrella. From what I gather from reading various threads on here and other sites, I don't have to worry about preserving my baseband since it's already at 3.10 and not 1.59 because I'm not upgrading to 4.2.1, correct? It would be a different story if I had the 1.59 BB; then I can just follow the thread here about preserving it via TU. Forgive my ignorance, but that means if I jailbreak with redsn0w using the tethered method, I would still have the ability to eventually unlock when/if the tools come out for x.xx baseband? Having said that, whether I JB now or wait, I can hopefully still unlock later on down the road? If that's the case, I'll just follow the tutorials at iclarified in regards to jailbreaking. Really appreciate the help. Thanks.