A new "Apple Events" tile that prominently shows the WWDC 2013 logo was added to the Apple TV interface overnight. Clicking on the tile reveals that Apple will indeed broadcast a live video stream of the event for Apple TV users. MacRumors notes that a similar channel appeared before Apple's iPad mini media event last October.
LIVE VIDEO STREAMING: Apple® will broadcast its WWDC 2013 keynote address using Apple’s industry-leading HTTP Live Streaming, which is based on open standards. Viewing requires Safari® on iOS 4.2 or later on any iPhone®, iPad®, iPad mini or iPod touch®; Safari 4 or later on Mac® OS X® v10.6 or later. Streaming via Apple TV® requires second or third generation Apple TV with software 5.0.2 or later. The live webcast will begin at 10:00 a.m. PDT on Monday, June 10, 2013 at www.apple.com.
(Curiously, Apple published the release on BusinessWire but not on its own corporate PR website.)
In related news, I received a tip last night that Apple will also stream the WWDC keynote via its WWDC app for iOS devices. The speculation was likely driven in part by a late Sunday update to the app (v1.0.2) which listed its only new feature as "Enhancements for video playback."
The tip also mentioned that the video stream would only be available to developers that registered before June 8, and not to users that click "Cancel" on the app's login screen. Now that the live stream will be available via Apple TV and on the Apple website, chances are quite good that Apple will also make it available via its WWDC app. I highly doubt the claim about the stream being available exclusively to developers at this point.
In retrospect, the copy on the WWDC videos page ("Coming soon to a screen near you" displayed above a white iPad) was probably a subtle telegraph of Apple's intentions to live stream today's keynote address. Or was it?