App Store location

No. Changing the location requires putting in a payment method valid in that country; people can browse other countries' stores, but not download content from them(except for podcast episodes).

(190010)

1. No. See my first response above.

2. You can browse another country's store in a web browser or clicking on the country's name in the iTunes window and picking it, but actually changing the country you get content from is a longer process.

(190340)

It'll only show you the USA store if you separately choose to view it.

(190076)