After checking the AT&T coverage maps for Maine, I figured I'd be able to use my iPhone while on vacation visiting Acadia National Park.  The coverage map was surprisingly good considering....

So after I get to Maine, I immediately realize a few things:

1. Coverage maps lie.  The AT&T map showed that there was service in the area I was based in.  The iPhones we were traveling with were pretty much useless except on mountain tops or in downtown Bar Harbor.   

2. The iPhone 4 antenna despite its problems got a bar or two more than the iPhone 3G that my boyfriend was using.  Just to reiterate, in side by side usage, we were surprised to see the iPhone 4 always got a bar or two more than the supposedly antenna problem free iPhone 3G.

3.  Not all service level bars are created equal.  Even though we both had a few bars at the top of certain mountains [yes AT&T service in Maine was that awful!] we still had no data throughput.  That meant it literally took three days for an email sitting in my outbox to get sent successfully!  See this speed test as a typical result when using the iPhone in Maine. This speedtest was on a highway near Portland if memory services.

So to recap, I have seen no issues with the supposedly flawed iPhone 4 antenna design.  The antenna on the iPhone actually did a better job at pulling in service over the iPhone 3.  And AT&T still sucks....