Hi,
I've been working on maintenance of my library and got new metadata for a slew of books and was pleasantly surprised to see a number picked up the ASIN. FWIW, I just recently used the Extract ISBN plug-in on everything in my library that was missing an ISBN and the ASINs turned up when I again checked (individually) for metadata.
I had a chuckle about it all since I had spent hours and hours fiddling with batch file and python program (posted by someone else) to get the ASINs from Amazon awhile ago. Well, it was a learning experience at least
Don't see anything about this in the release notes but I'm still grateful to have it. Thank you, Kovid!
Rob