(Note: I don't actually touch-type, although I'm pretty sure this would be fine for that too. I use pretty much all 8 fingers, but in a liberally flying around style involving looking at the keyboard rather often.)

Yeah, I have one just like it. I don't like to call my fingers fat, but they're not exactly dainty, and it works fine. As you can see, it folds up to just a smidgen over half its deployed size; it's maybe 1/8" wider than the N800. Stacking it on my laptop keyboard (HP tx2000) the layout looks almost a half-key shorter over a whole row.