The only problem that I face in the iPhone3G is that MobileMe contacts syncing seems to go toast. I am thinking of ditching MobileMe anyway and hence it's not too big a dealbreaker for me. However, people who do rely on MobileMe - did you face the same problem?

That was a problem free update and restore. Thanks for the efforts guys. Will post any problems (if any) that I face. Thanks again.

Thanks for the update guys. As usual, you guys rock and thanks for the Superbowl bonanza. Go Saints! And waiting for the pwnage tools.

I have the same problem. Despite having a contract free iPhone, I still need to unlock to swap sims whenever I am outside US. However, the battery life has taken a battering as a result. I hope we can bring it to the attention of iPhone-Devs.

At the same time, it's good to know that the carrier name are back. However, an easy one recharge a day is happening

iPhone 3G / 3.1.2/ 04.26 baseband

I am facing the same problem. After updating to ultrasn0w 0.92 and MobileSubstrate 0.93xx, my battery life is taking a major hit. Everything off, it still doesn't last more than 8-10 hours on standby (i.e. no calls/texting/wifi usage).

I tried to completely restore the phone (not restoring from a backup). However, the problem still continues.

Worse, the cell phone signal is a lot more sporadic. =(

Hmm, if it gives me 3.0.1 battery life, I am more than happy :)

Thanks for the clarification slugoo.

However, I had unchecked the "activate" my phone. I still have my AT&T sim that take validates my phone and activates it with iTunes. I understand that it's cosmetic however, I really don't want any fees changing my carrier accidentally =D!

And I am not even planning to install Winterboard. I am still alarmed at the increasing number of complaints regarding battery consumption by the 3.1 firmware.

Thanks to the dev team for yet another awesome release. I have successfully jailbroken and unlocked my iPhone 3G (sans contract, but still tied to AT&T) to 3.1 You are the savior for those of us who are locked into the devious ways of AT&T :)

It has gone without a glitch. The only things that I am noticing are

1. There is no carrier logo/string [I am guessing this should be updated sooner/later]
2. The phone works perfectly.
3. I haven't faced any random crashes or weird spring board activity or unwarranted battery consumption just yet. However, in case I do find anything amiss, I will continue the post here.

I did try to use redsn0w. However, it hangs at "waiting for reboot.."

Is it safe to use redsn0w when I previously jailbroke with Pwnage?

Even if you buy an iPhone3G / iPhone 3GS w/o contract, it's still locked to AT&T. And they won't be able to unlock it as per their deal with Apple. So I would recommend getting the iPhone 3GS from Hong Kong / New Zealand / France / Belgium if possible