Where? I can only see one instance of "touchpad" and it's referring to the laptop mouse replacement thingy, not the HP tablet - which ran WebOS, not Android, anyway.
He mentions "slightly larger tablets like the dead (and rooted) HP TouchSmart."; unless 20"[0] is his definition of a 'slightly larger tablet' and Windows can be rooted (in the Android sense) now, I think it's safe to assume he mis-typed TouchPad.