In a letter on Microsoft's website, Chris Charla - director of ID@Xbox, the indie-focused division of Xbox - has announced cross-network play for the Xbox One and Windows 10, allowing players across both platforms to play online together.
This may not seem applicable to PlayStation at first glance, but Charla's wording hints at the possibly of cross-play between Xbox One and PlayStation 4, saying "This [cross-play] means players on Xbox One and Windows 10 using Xbox Live will be able to play with players on different online multiplayer networks - including other console and PC networks" before announcing cross-play for the Xbox One version of Rocket League, and sneakily adding "an open invitation for other networks to participate as well".
Of course, there's a degree of speculation here, but Microsoft's wording seems to hint that cross-play between the PS4 and Xbox One is something that it would be up for. While it hasn't explicitly named Sony's machine, it's quite obvious that this is what Charla is hinting at.
What are your thoughts on cross-platform play? Would you support it if Sony were to implement this feature? Build some bridges between the two platforms in the comments.