Thanks for the great port!
One thing I noticed the enter key is not recognized in (at least) King's Quest IV (SCI Version), so it's impossible to get through the copy protection question (and, i would assume also to enter commands later in the game). This seems to be due to the keybindings in the n900-version, as it works the way it's supposed to be in scummvm 1.2.0 on my Ubuntu box.
Any help appreciated. If I can provide any more information, I'll do my best to help