"Questions..." "I don't have answers"

So many great minds and ideas on this forum I'm learning something new with every visit.

1) How does Roy know Deckard's name in the end? "Come on Deckard....show me what your made of."

Well, here's my take: Leon was in the crowd when Zhora was retired. Deckard gave out his name and identified himself as a Blade Runner. Leon, with Nexus 6 hearing, could have picked up on it. He may have contacted Roy with the information before he took one on the dome.

Good question and an interesting speculation in the response. My own theory is that Roy, being inquisitive by "nature," found this information during his time in Tyrell's bedroom. Surely a man as busy as Tyrell kept a calendar - wouldn't it note Deckard's appointment for testing the Nexus 6? It seems to me that after murdering Tyrell, he would have a sense of the inevitable clash with the Blade Runner and want to know all he could about him.