Today I found some time to do some initial exploring in the Chinese virtual world HiPiHi. I used the excellent installation and navigation instructions created by Alto Xeno, with the able assistance of our office techie Usman. Within a few minutes of setup, I was walking around, teleporting from place to place, modifying the appearance of my avatar, and rezzing objects.
The experience is disconcertingly familiar for a Second Life resident like me, since the whole thing clearly is a reverse engineered Chinese version of SL. Everything from the basic user interface, the avatar modification sliders, the "instant transmission" / teleportation system, and the mini-map are all heavily borrowed / stolen from Linden Lab’s virtual world.
Sadly, I did not run into any other avatars while I was there, which given that it was 4AM in China is not surprising. That’s my next goal: first contact!