To add to what Horst said, spell descriptions are in the tome (along with references to manual page numbers), as are descriptions of pretenders and units. Admitedly, the unit descriptions need an update to match those of Edi's UnitDB.
As for descriptions of magic items....hmmmmm.....:
rokes chin thoughtfully::....Horst, I think I know what I want to work on for version 3.0. =)
Good grief, I hope I can get that done before Dom3 gets here....