I am new to the iphone and have a jail broken 3gs on 3.1. I used the pwnage tool and it worked like a charm.

I am with At&t and don't plan on leaving.. If all i need is to be jail broken are there any advantages to having the updated baseband. Right now I am on 4.26.08.

Thanks

The advantage is if you ever plan to sell your iPhone 3gs and it's unlocked you will be able to fetch a bit more cash.

Thanks i did not think of it that way. What does the baseband do? Are there any advantages to having 5 over 4 battery life better reception ect?

Thanks

The advantages seem to be purely cosmetic (carrier name and logo appearing in status bar). I could upgrade to new baseband safely (factory unlocked phone) but have not done so yet. Have noticed no real difference in mobile reception or battery life.

Thanks all for the insights.