I've found that if I hold the touchpad in portrait view I can type on it with my thumbs, just like my Pre. HOwever, since I have to hold it so far down the unit it becomes unstable in my hands. I moved my hands up to the top to pretend like the keyboard was up there. It's much more stable and you can still see the screen below.

If someone is able, I think it'd be great to be able to move the keyboard to the top of the screen with a patch.