Except the WHF team is there, and will be reporting live - it's just that the event doesn't kick off for an hour!
I only know this because the team has been mentioning it on the @whathifi Twitter feed for the past few days
Edit: And it is mentioned there will be live coverage of the event in this Samsung S3 preview story from yesterday:
http://www.whathifi.com/news/update-samsung-galaxy-s-iii-to-come-in-blue-or-white-and-with-48in-screen
In short, far from "complete silence" as the OP suggests... *sigh*