Forgive my ignorance but there's just so much to digest re: upgrades/unlocks that I've gotten a bit lost in the sea of info. My question is, is it possible to upgrade my 3GS (new bootrom, 5.13 on 4.01) to 4.1 w/ untethered jailbreak and keep my baseband? I know the new Ultrasn0w will unlock it but what about the rest? What are the best tools to do this with? SHSH blobs are saved in TU. I don't think the new Pwnage tool (4.1.3) is what I should be using but unsure. I do have Pwnage 4.1.2 but not sure if I will remain untethered if I use it. Also...is Apple still signing 4.1? I believe they are but again, unsure. Thanks!