In the Game Informer Magazine Article it was mentioned that casting two spells at once will produce a combined spell effect.
Will pressing a Spell + Weapon together produce a combined Spell and Attack Effect, similar to temporary enchantments?. If so, It would be great for Spellsword Characters... Like: Fireball + Sword = Temporary Fire Sword
yes it would be awesome, sort of how poisons worked in oblivion. But maybe more than one hit. On that matter i would also like that poisons didnt completly dissapear after one hit.