I had this phone too for more than two weeks now and my thumb gets sore after using it. You have to have a long, thin thumb on either hand if you want to dial/text with one hand. My old black, brick, Nokia phone enabled me to dial/text with one hand because the keypad was sensible. Of course, I'm doing this while driving =).
Here's the article outside business2.0.
I had this phone too for more than two weeks now and my thumb gets sore after using it. You have to have a long, thin thumb on either hand if you want to dial/text with one hand. My old black, brick, Nokia phone enabled me to dial/text with one hand because the keypad was sensible. Of course, I'm doing this while driving =).