Hi OliverB, it still for sale.
I have been asked if this is a "genuine" 350Z key. From what I've read Nissan makes one type of key across certain models, they don't make a key for a 350z and a different key for a Micra etc.
The key for sale is exactly the same as the keys that came with my Zed (same number on the outside, same internals etc)
Hope that helps