Hacker News Reader

I think you've missed a couple of IDN gTLDs, some launched more than a year ago, i.e. http://www.thewhir.com/web-hosting-news/111710_470000_Domain... .

They are country-code top-level domains. Currently IDNs are limited to country representations only.

The current non-IDNs are also limited.

Which makes the issue of IDNs unrelated to this discussion.