We called the PS4's ability to Stream gameplay over Twitch and Ustream a potential killer app when we reviewed the system, and many PS4 owners seem to agree with that sentiment. Sony announced today that PS4 users have streamed 800,000 distinct sessions since the system launched in North America on November 15 (and in 31 other countries November 29), comprising more than 20 million minutes of live streamed gameplay from the console between both services.
Sony didn't break down how many distinct PS4 owners are represented in those sessions, but Twitch announced that over 100,000 PS4 owners signed up for and used its service in November, growing the Twitch userbase to more than 700,000 people. Assuming that Ustream's numbers are comparable, that would mean somewhere around 5 to 10 percent of the 2.1 million PS4 owners as of December 3 have tried streaming from the console.
Twitch says that a full 10 percent of the minutes broadcast across the service have come from PS4s since the system's North American launch, with the average user signing on to the service for 100 minutes a day (including spectating). Ustream says the average PS4 broadcast session on its service lasts 31 minutes. Between both services, PS4 users have watched broadcasts 7.1 million times.