Looking at the settings on my activated iphone, I can't see anywhere to configure the data profiles. I assume this is because apple has hard coded them for AT&T.

Has anyone investigated how difficult it will be to change these for other providers? Is it something as simple as a plist file? Or will it require custom firmware for each provider?

You just need to edit /var/root/Library/Preferences/SystemConfiguration/preferences.plist (text file)

Am I not correct when I assume the iPhone can't do GPRS ?

i'm fairly sure edge is just a tweaked/enhanced GPRS, and it's likely that even in the US, the iPhone supports GRPS already as a fallback when the EDGE network is not available.

I suspect that you would see a little "G" at the top of the screen instead of "E". Can anyone confirm?

Originally Posted by Zf_

You just need to edit /var/root/Library/Preferences/SystemConfiguration/preferences.plist (text file)

Wow. It's really all just sitting there, isn't it?

That was my main worry with getting the phone for use in the UK. I have supreme confidence in the devteam actually unlocking the phone, but I was worried that configuration for different mobile networks was going to be a pain.

Thanks!

it definitely seems to be sitting there alright.

First time viewing the file via my SSH connection, I saw this:

<key>apn</key>
<string>wap.cingular</string>
<key>password</key>
<string>CINGULAR1</string>
<key>username</key>
<string>WAP@CINGULARGPRS.COM</string>

it made me smile.

Also, the damm thing supports IPv6 off the bat,