AT&T is Throttling iPhone 4 Upload Speeds?

Some iPhone 4 owners has discussed this issue on Apple Discussion board, they reported that some of iPhone 4 owners get 100kbps speed in places where it should be more than that, Also users on other forums and discussion boards are getting the same issues!

This issue only discovered for people who got AT&T Locked iPhone 4 (which will be soon
Unlocked), Here's the places where users get low upload speed:

NYC, Central Jersey, Boston, Orlando, Seattle, South Jersey/Philly, Columbus, Cleveland, West Houston, Phoenix, Northern Colorado, St. Paul/Minesota, Suffolk County/Long Island, Quad Cities, South Jersey, Denver, Detroit Metro, Cincinnati, Baltimore, Salt Lake City, Las Vegas, Kansas City, Fairfax, Minneapolis

If you don't know how to test your speed to make sure for that, just navigate your Device to Speedtest.net (Compatible with Apple, Android,..) and test your speed then report us!