This video's going to get swiped pretty quickly if Digital Foundry's clip is anything to go by, but we'll report on it while it's live: the PlayStation 4 Slim comes with an updated DualShock 4 controller. While it looks identical in terms of form factor, there's a light been added to the touchpad. Yeah, we've no idea why either, but there you go.
The controller looks identical in terms of ergonomics, but it's probably safe to assume that other minor tweaks have been made to the innards if this added LED is any indication. Could it have improved battery life? We're sure that you'll appreciate that all of this information is leaking in drips and drabs, but we'll keep you updated as and when we learn more.