Ok. Now Trying this:
1) Remove battery and unhook AC power, leave the battery hatch open and unlocked
2) Press D+M,
3) While holding down firm on D+M, attach AC while holding keys down for 3-5 seconds ...
4) This pops up the service dialog menu, with about 3 pages of menus and options
5) The bootflag is currently, "----"
6) Turn off zaurus by pressing front-side on/off button

AC is still attached
9) Click the reset switch
10) Put battery back in, close hatch, lock (The battery light comes on)
11) Attempt to turn on by pressing the front side "on/off" button
12) Nothing happens
I held the "on/off" button for 15 seconds, but no response.
I have not tried doing another NAND backup restore yet. Should I give that a whirl?