Ask HN: Going international with Apple App Store

Those of you developing for the iPhone:

Are there any interesting details about international markets? Any legal restrictions imposed by Apple about where you can sell? Is there price discrimination? Also, is it possible to set restriction for your app yourself, in case your business has to be different in different countries for legal or other reasons?

BTW, I may be hiring an iPhone dev so those interested feel free to contact me (email in the profile).