I keep on second guessing myself about this. How many of you decided to stick with 3.0 and don't plan on upgrading? I'm kind of tired to seeing more and more of my apps restricted to the 3.1 firmware. Info: I have a 3.0 jailbreak with 04.26.08 modem firmware. Cydia has my SHSHs for 3.1 and 3.1.2. A few things I have questions about: 1. If I jailbreak to 3.1.2 will I still be able to tether? 2. Will I lose the possibility of unlocking? I don't really plan on selling my 3GS anytime soon but if it's unlockable it is more valuable, right? 3. Is there any way to get 3.1 only apps to run on my 3.0 firmware?