Spellcraft no longer protects against mundane things, like grenades, dirty fighting, etc. This is good and makes sense.
It is exceptionally easy to put +1 reflex/will/fort on equipment and +2 spellcraft.
I suggest that the +1 reflex/will/fort from equipment not count towards spells.
+1 uni already fills that roll vs spells and all things, and +2 spellcraft already fills that role vs spells.
You're effectively doubling/tripling up on saves vs spells on all your gear this way.
It's just a bit too easy to become immune to dc spells (unless you roll a 1), and this change might help that? I think. Even if this happened saves will probably still be too high for dc spells, but it could be a step in the right direction.