Sony’s cross-play function for PlayStation 4 has now completed its beta phase and is a full feature for developers to make use of.
Strangely, Sony has made no official announcement about cross-play being promoted to a full feature. The new instead comes from a Wired article, which states that cross-play is now available to any developer that wishes to implement it in their game. Call of Duty: Modern Warfare seems likely to be the first new game to support this at launch, with it being set for release later this month.
Source: IGN Video Games All