According to Shuhei Yoshida, President of Sony Computer Entertainment's Worldwide Studios and frequent PlayStation spokesperson, work on an "official application" for Remote Play support on PC and Mac is underway.
Some people asked if we plan to provide Remote Play function to PC, and yes, we are indeed working on an official application for PC/Mac. :D— Shuhei Yoshida (@yosp) November 27, 2015
This follows the summer release of Windows 10, which included a feature to stream Xbox One games to the new Microsoft operating system. Remote Play is currently supported via the PlayStation Vita handheld and the PlayStation TV micro-console, so the addition of both PC (meaning Windows, presumably) and Mac OS support would greatly extend the utility of the feature.
As pointed out by Kotaku earlier this week, an unofficial application called Remote Play PC is in development and available as an alpha release now for £6.50 (about $10). "I’d like to work on this project full time, adding features, getting it stable and porting it to other platforms which I know a lot of you want," the developer wrote on his blog. "The only way to support this is to charge for the app, all my previous projects have been free and I don’t want to have to but sadly it's the only way to support my living costs."
As you can see in the video below, the software works, though the download page is clear to state there "will likely be bugs and crashes" and refunds are not allowed.
The release of this unofficial app ostensibly prompted inquiries of Yoshida and, in turn, his response and low-key reveal of official PC/Mac support for Remote Play. Yoshida didn't provide any details, for example, as to whether or not the streaming is limited to your in-home network, if the feature would work over the internet or when this application is expected to be released. We've reached out to Sony for clarification. We've also reached out to the developer of Remote Play PC for comment on Yoshida's announcement.
Update: Reached for comment, Sony said, "We are currently working on an application to enable remote play for PC. Details will be announced when ready." As for the unofficial application, "Yes, we are aware of the unofficial application, but have no further comment," Sony said.