EDIT: Ok, I got keyboard working on the ROXTerm... Will update later...

And as I said before, there's no xfce4-session, only a startxfce4, is that what you mean? Heck, I'll give it a try. I think I'll also try to boot to the Debian install that I've been chrooting to.

EDIT: No-go on switching out Hildon and switching in xfce4. I renamed /usr/bin/start-hildon (the script called by /etc/init.d/hildon-session to actually start Hildon) to hildon-desktop.old and then I did a soft link from startxfce4 to start-hildon, but no joy. Debian doesn't ever boot; it just sits at the "Booting from mmc4" screen forever.

EDIT2: I've found xfce4-session, and I've tried various ways of swapping stuff in and out to get xfce4 instead of hildon desktop. Nothing works...