Developers in Argentina have begun receiving letters from Google informing them that "Google Play will no longer be able to accept payments on behalf of developers registered in Argentina starting June 27, 2013." The change applies to both paid apps and apps that use in-app purchases. The move appears to be related to new, restrictive regulations the Argentine government has imposed on currency exchanges, which The Telegraph detailed this past September. Twitter has quite a few developers complaining about the changes, but it's not clear how many people will be affected. Android customers in Argentina will still be able to purchase apps in the Play store and developers from the country can continue to offer free apps.
Celularis has a copy of the letter Google has sent to Argentine developers (and a follow-up post with more details), which states that a final payment will be made on July 22nd and, strangely, lacks anything like an apology for those affected by the changes. Developers in Argentina who do want to continue to make money off apps in the Google Play store will have to transfer their account to another country — and Google even goes so far as to suggest that very option in its letter. Google hopes to restore payments at some point in the future, though "no specific plans are in place at the moment."