Cool 
If I understand it correct, the sender must know the stealth address from the receiver and the receiver must know the nonce from the sender, so information need to be exchanged both way, comparing with the standard way of only providing a receiving address?
If I understand it correct, the sender must know the stealth address from the receiver and the receiver must know the nonce from the sender, so information need to be exchanged both way, comparing with the standard way of only providing a receiving address?