I expect Rocket Genius is based in the US, and that a large percentage of users are based in the U.S.. However, I am sure there are still quite a few non-US users out there!
The question about how you format the address and phone numbers has been mentioned before, but I just wanted some clarification.
With the phone number formatting you can choose between the standard (I am assuming US one) and "international". I take a bit of an issue with that in that being based in the UK, the U.S. one is the international one! It would be great if there was a "location settings" option in Gravity Forms where I can say that the website is based in the UK locale. That way it would default to a UK telephone number format. It would be really useful for there to be more options here, for example:
With the latter "custom" giving you the option to create the format yourself. It would be cool if you could add "plugins" for these.
The same goes for the address. It's geared towards the US market again- giving a list of states and mentioning "zip code". Can the address box not be customised? It would be great if you could choose from (for example):
A list of states is no good for a non-US address, and it would be good to be able to use a list of counties or other regional area (again making plugins available for this would be useful so that users can build their own)
I suppose the best system would be for the person filling in the form to select their country, and the form changing to the correct address formatting for that country.
Sorry that this is a long rambled message, but I do feel this is really important! Please feel sorry for all of us outside of the United States. We are important and we're quite nice really! ;-)