Alot of people here COMPLETELY missing the point. Let me overly simplify it.
A. News reports show signal loss from 5 to 0 bars when held "incorrectly." Numerous consumers who see these reports and are on the fence about buying an iPhone hear that it affects ALL iPhones and in some extreme cases people are claiming the iPhone 4 doesn't even work as an iPhone.
B. I hold the phone the same way and get zero signal loss. No I didn't get out an electronic meter to measure it, because neither did the news reporters.
C. All the Anandtech article proves is that the iPhone 4 behaves like any other cellphone. It is strong in some areas, weak in others. Covering up an antenna affects signal reception. OMG... stunning news. I guess those folks never owned a transistor radio back in the day and noticed how the signal changed based upon whether you are physically touching the antenna.
D. There is no proof whatsoever that the problem affects ALL iPhone users.
E. End of story.
Are you even reading the posts in this thread?