Sony's Playstation-less Playstation announcement: what were they thinking?

After a presentation that dragged on for hours, Sony failed to show the assembled game press the gadget they were there to see. The verdict was in before the event was over: another Sony shitshow. The New York Times' Brian X Chen sums it up:
During the 140-minute event, which started at 6 p.m. in New York, the press reactions started with impatience in the first hour, gradually rising to frustration in the second hour and finally, in the third hour, a combination of disbelief and disappointment when the show concluded with no price tag, no shipping date, and not even a prototype or a picture of the PlayStation 4 revealed. Left without a box to review, the press turned on Sony instead.
However, we can EXCLUSIVELY REVEAL the design for the new PS4, above. All is forgiven, Sony!

Sony unveils "reinvented" Playstation 4

Playstation 4, from Kotaku's liveblog

'Tis the season for big news in console gaming: both Microsoft and Sony have been expected to announce new hardware. Sony is first with a new edition of the PlayStation 4. Around the web, live-blog coverage of the invite-only announcement event: Verge, Engadget, Kotaku, Ars, Wired.