I have looked at a 7105t in the store and there were really two things that stood out that were different than the 7100t. The screen seems much clearer. I’ve heard that it you can see it in direct sunlight which I couldn’t test for myself, however, it sure looked good indoors compared to my 7100t. The biggest improvment that I could see in my five minutes of playing with a 7105t was the contoured keypad. Being almost 6′ 5″ inches tall and having very large hands, this was a very noticable and much appreciated improvement.

I won’t be upgrading to a 7105t because I am switching carriers and moving to Verizon before the end of the year, however, I would definately upgrade if I were staying with T-Mobile.

By the By. I am not having any problems with T-Mobile. The company that I work for is switching carriers.