Is the HS2000 still available in the US or around the world?
No new HS2000 pistols are allowed into North Amrica unless SA does it, since they have the importaion rights. The HS2000 is still available everywhere else in the world through various distributers not based in North America. Used HS2000 are still found in pawn shops and stores but they are few and far between.
Is the XD availabe anywhere else other than North America?
Probably not, since other importaion companies have rights in their respective areas of distribution.
The HS latest series (Generation 4) is available here in Manila same with the XD, they are identical in all aspect, it differs only on the markings of the slide 'HS' and 'XD'.
This is the HS45 ACP model with a thumb safety