Sorry, that's my mistake, fixed the link in the above post now.
However, during boot there is no countdown now, so it must've been removed.
First there is the "Wait a minute" screen, during which I hit / alot. After a while there appears a black console line at the bottom of the screen, where what you press on the keyboard actually displays thus /// etc. If you hit enter, the line clears, but no menu pops up, nothing.
After a while more, the graphical zaurus logo pops up etc.
So it doesn't work like this... Any other ideas?