Android Dev Phone 1 and AT&T

Google recently released completely unlocked Android Dev Phone 1 which is supposed to work with any provider. You pay $25 to register as Android developer and then can buy a phone for about $400. A phone comes with`How to set up your Android Dev phone 1` instruction which suggests that to set up Dev Phone to work with other than T-Mobile providers one needs to open "APN Settings" menu and enter information for a correct provider, using information provided on this `Quick IM` page.

Did someone already successfully set up Android Dev Phone 1 to work with AT&T wireless? Is it really a best and only strategy to type manually APN settings obtained from Quick IM page? Isn't there any more automated way like downloading setup application to a PC, moving to Android Dev Phone 1 through USB and running?

`How to set up your Android Dev phone 1` instruction and Quick IM page also suggest that to use fully Android phone one neds a data plan with GSM service provider. `you need to have a properly configured internet access GPRS account, please note that most operators provide GPRS settings suitable for WAP browsing by default, which is not compatible with QuickIM in most cases. GPRS Internet connection usually requires different settings and possibly an operator activation to work. GPRS settings are often named with "internet" or "web" words in it ; in most cases anything with "wap" in it limits the connection to WAP only.`
A localAT&T agent explained me that such internet GPRS access costs additional $30 per month on top of my normal payments. Pretty expensive...

Update: there are settings for Android Dev Phone 1 to work on AT&T, they were recommended by Jackson Miller on http://groups.google.com/group/android-developers and they work!

Name: AT&T
APN: wap.cingular
Proxy: [Not set]
Port: [Not set]
Username: wap.cingulargprs.com
Password: CINGULAR1
Server: [Not set]
MMSC: mmsc.cingular.com
MMS proxy: [Not set]
MMS port: 80
MCC: 310
MNC: 410
APN type: [Not set]