Re: IDN available for .cn, .tw, .biz etc. BUT reserved in .com & .net - any ideas why?
Likely because the simplified or traditional version is already registered ... This will return a variant error .. so check your version against the traditional version (or vise versa) and you will probably find it is registered.
Some registrars will instantly check it for its traditional or simplified version and some will check it after you have placed your order.