I have one question to Cryptic. Why are these contest restricted to X country only? Is the problem somekind of legal hassle or what?
If that is the problem then I'm afraid that these contest will happen in "big" countries only and I don't happen to live in such.
Legal reasons are almost always the reason that contests are limited to certain geographic areas. Different countries have vastly different rules concerning contests ranging from eligibiilty, tax reporting, notification, participation, etc. That is why most companies won't sponsor international contests. It is too expensive to guarantee compliance everywhere and often impossible.