It means the phone is using GPRS, not EDGE. AT&T has been having nationwide network problems lately that have been causing people sometimes to drop to GPRS.
Where'd you hear this from? I haven't seen anything about this until now.
There were slow 3G speeds on launch weekend, but that's largely abated.
I was dropping to GPRS on my iPhone (first gen) and my Blackberry on Tuesday. Other people in my office (downtown Boston) were too. I called AT&T support and they told me that they were having issues.
Where'd you hear this from? I haven't seen anything about this until now.
There were slow 3G speeds on launch weekend, but that's largely abated.
i too received that little dot once. i searched for an iphone users manual online and sure enough, the little dot means GPRS.
Here is the manual, refer to pg 17:
http://manuals.info.apple.com/en/iPhone_User_Guide.pdf