Lets say I have a mage who specializes in touch attacks, and who also has a full synthetic arm with grapple hand. Sine he paid for the arm in essence he can use it as an extension for his magic right? He could use his grapple hand to deliver touch attacks. And if you're saying "no" to that because his hand is not living flesh, therefore unable to communicate magic, than how about he grafts his own skin over his cyber arm, so that his living flesh covers it? He would have live flesh over his cyberware. By that logic he could use magic with his grapple hand. Just when you thought you could only do Ranged Touch Attacks in dnd. It would still count as a Touch Attack, right?