I don't know whether there are any shipment differences but the support of Xbox Live is not all around the globe, some countries, in Asia in particular do not have XBL support.
Full List:
Australia: International English
Austria: German
Belgium: Dutch, French
Brazil: Brazilian Portuguese
Canada: English, French
Chile: Spanish
Colombia: Spanish
Czech Republic: Czech
Denmark: Danish
Finland: Finnish
France: French
Germany: German
Greece: Greek
Hong Kong: Traditional Chinese, English
Hungary: Hungarian
India: English
Ireland: International English
Italy: Italian
Japan: Japanese
Korea: Korean
Mexico: Spanish
Netherlands: Dutch
New Zealand: International English
Norway: Norwegian
Poland: Polish
Portugal: Portuguese
Russian Federation: Russian
Singapore: International English
South Africa: International English
Spain: Spanish
Sweden: Swedish
Switzerland: German, French
Taiwan: Traditional Chinese
United Kingdom: International English
United States: English
Seems a bit limited taking into the account the amount of countries WW.
List for PSN:
Argentina
Australia *
Austria *
Bahrain
Belgium *
Brazil
Bulgaria
Canada *
Chile
Colombia
Croatia
Cyprus
Czech Republic *
Denmark *
Finland *
France *
Germany *
Greece *
Hong Kong *
Hungary
Iceland
India
Ireland *
Israel
Italy *
Japan *
Korea *
Kuwait
Lebanon
Luxembourg *
Malaysia
Malta
Mexico
Netherlands *
New Zealand *
Norway *
Oman
Peru
Poland *
Portugal *
Qatar
Romania
Russia *
Saudi Arabia *
Singapore *
Slovakia
Slovenia
South Africa *
Spain *
Sweden *
Switzerland *
Taiwan *
Turkey
UAE *
United Kingdom *
United States *
Marginally higher, if the lists are any indications, the PS3 has more regions to ship for, what logic I am going by? If you are officially shipping to the country, why wouldn't you support it online?