The book doesn't have any info as to whether or not you pick up the casting abilities of the class you are multiclassing with. The cleric mentions being able to spontaneously cast spells on your spell lost, the magus references using spells on the magus spell list, and the wizard lets you pick a school of magic to gain the abilities for which does little good to one who can't cast spells.
I'm just curious as to if I'm missing something or not. It just doesn't seem worth the effort to multiclass into a spell casting class.
