I wonder what this is going to affect....besides needing a keyboard with 100,000 keys. http://www.pcworld.com/businesscenter/article/181094/icann_approves_domain_names_we_cant_type.html
Probably because they are noticing a shortage of real domain names. This is going to have problems, we are going to have to learn (or re-learn) are ASCII buttons D:
Are people ever going to want domain names that you can't type? In the end I don't think it's going to cause you problems, because web hosts don't want it to. Domains using other character sets will probably not contain much English text.
That's the thing... if someone makes a domain name in Arabic, then it's going to be aimed at Arabic-speaking readers. In other words, you won't be able to use the site even if you can type the URL. If they have an English version, they'll have an English domain name pointing to that. So, it's no big deal - this just opens the internet up to more people (namely those that can neither understand English nor the Latin alphabet, assuming there are any of those using computers in the first place...). P.S. I do have to share the concern over "look-alike" domain names though. They'll need to address that at some stage.