Currently on an iPhone 4 running iOS 4.1 and baseband 1.59.00
I haven't updated my iPhone in sometime and iOS 4.3 has me anxious for some new phone features, so I thought I could upgrade the OS through iTunes (overwriting my jailbreak) and just jailbreak when it's released later on.
I only consider this because jailbreaks aren't baseband specific are they? Should I really preserve my baseband if I DON'T plan on going to any carrier anytime soon (I will be sticking with AT&T).
I also have a few licenses for some apps purchased off Cydia, would I lose those?
i had some other questions but can't think of them now
If you dont care about unlocking then ya you can just go to 4.3. Jailbreaks are not baseband specific. Your cydia purchases can always be downloaded again for free.