Blizzard is going to rename all of Diablo 3 spells so they will not overlap with World of Warcraft's spells (even though they do the same thing):
Magic Missile -> Magic Arrow
Arcane Orb -> Arcane Exploding Ball
Shock Pulse -> Shock Zaps
Frost Nova -> Ice Explosion
Ray of Frost -> Beam of Ice
Diamond Skin -> Skin like Diamond (oh wait that overlaps with EQ)
Spectral Blade -> Ghost Dagger
Wave of Froce -> Energy Wave
Electrocute -> Lightning Zap
Arcane Torrent -> Arcane Volley
Ice Armor -> Armor of Frozen Waters
Energy Twister -> Energy Cyclone
Slow Time -> Warp Time
Storm Armor -> Armor of Electricity
Explosive Blast -> Burst of Explosion
Disintegrate -> Vaporize
Hydra -> Three Headed Snake-thing
Magic Weapon -> Weapon of Magic (hmmm...)
Teleport -> Blink (oh wait.. dammit) Zoom!
Meteor -> Flaming Ball of Destruction
Mirror Image -> Illusionary Images
Blizzard -> Rain of Frozen Waters
Familiar -> Little Me
Energy Armor -> Armor of Energy (shrug)
Archon -> Arcane Entity