I agree with this. I have an iPhone; and after a day or two, I was flying around on the keyboard. My speed is definitely improved when I don't have to physically push down a key to convey input. The only situation in which I would prefer tactile feedback, is when I'm entering a password. The spellchecker on the phone is very good for the most part, and it's my indicator of what I'm doing right or wrong. However, when I'm typing a password, I lose that luxury and must pay notice to each letter I'm pressing.