Can this be bought in Hong Kong anybody know?
Definitely as the ZX507 had been online at sony.com.hk for 2 months already, but just with a "notify me" button there without pricing:
https://www.sony.com.hk/en/electronics/walkman/nw-zx500-series
Today I heard from a local HK head-fi store that saying it will be available in mid of Nov, let's see.