One of the many exciting changes announced at BlizzCon was that free Spell Damage would be added to healing gear. The purpose of the change is to make it easier for healers to enjoy the solo PvE content in the uber gear they have picked up in groups and raids. Too many healers change to lesser geared alts after raids are over, for example, instead of being able to quest in their +Healing epics.
It was confirmed last week that the change will occur in Patch 2.3 and the extra Spell Damage will equal 1/3 of the +Healing stat on gear. So, for example, an item with +75 Healing will have +25 Spell Damage added to it without reducing any other stats.
Some confusion has occurred, however, about just how generous Blizzard was going to be with the free Spell Damage. Forum poster Bridge requested a link to prove that "this includes enchants, gems and set bonuses".