For me personally, having come from a touch pro 2 to the old evo, with all of my close friends using epics, i would have to say that the transition was not as hard as i imagined it to be, from one of the best hardware keyboards on a phone to having no keyboard at all. The screen size on the original evo definately made a difference in usability, and i would imagine that the even bigger screen on the new one will make it much less harsh. At first i thought it was because i was just able to adapt because i just got the hang of it, but then i tried to use the tiny keyboards on my parents' iphones and i realized fast that the screen size was a big factor.
I use keyboard manager to keep it in swype in portrait mode and switch to thumb keyboard in landscape, its a little less accurate than having a hardware keyboard, but its not the end of the world.
