I can't figure out any benefit to preparing spells. Why do you want to do this?
If a sorcerer could prepare some of his spells, he wouldn't have to apply metamagic on the fly and then suffer the augmented castin time penalty.
In 3.5, there was a feat that allow a sorcerer to prepare spells like a wizard (and then cast spells with metamagic at the norma lcasting time), it was called Arcane Preparation IIRC.
In Pathfinder, the only way to do such a thing is the Eldritch Heritage feat chain to get the Metamagic Adept power from the Arcane bloodline. You don't prepare your spells but it allows you to apply metamagic without increasing your casting time.
Another reason could be to qualify for a Prestige Class.
If a sorcerer could prepare some of his spells, he wouldn't have to apply metamagic on the fly and then suffer the augmented castin time penalty.
In 3.5, there was a feat that allow a sorcerer to prepare spells like a wizard (and then cast spells with metamagic at the norma lcasting time), it was called Arcane Preparation IIRC.
In Pathfinder, the only way to do such a thing is the Eldritch Heritage feat chain to get the Metamagic Adept power from the Arcane bloodline. You don't prepare your spells but it allows you to apply metamagic without increasing your casting time.
Why would you take EH: Arcane when you're already playing a Sorcerer, rather than just taking the bloodline?
Probably because he wants multiple blood lines, which i believe he could just use cross blooded.
Ring of spel knowledge let´s you teach a spell into the ring and then use it as known spell. You can have a spellbook to gather spells for that and exchange them. Costs are like a wizards.
Page of spell knowledge level x let´s you just add a spell from your spelllist of level x to your spells known.
Stuff all my sorcerers really love, since you can broaden your spectrum widely and even non-human sorcerers can know more spells and be versatile.
But there are no feats for that.
If a sorcerer could prepare some of his spells, he wouldn't have to apply metamagic on the fly and then suffer the augmented castin time penalty.
If that's what you're after, you could take the Spontaneous Metafocus feat.