On the day, you might finds there is a seat at 80A. Newer planes have a different configuration but it seems they use the old one on seat maps, presumably as it's easier to add one if they use a newer frame than move someone out.

The wall pockets are fine for a book or something similar, but don't plan on getting a bottle of water, headphones, sweets and a book in there.

You can see the seats on Google Street View here:

https://www.emirates.com/uk/english/...ates_a380.aspx