Google announced the would open VP8 up as WebM, an open source video codec in a Matroska package with Ogg Vorbis as the audio encoder. So I thought it would be good to have a news round up of who’s in, who’s out and what Apple thinks (we all know that without a 500-page letter from Mr. Jobs).First off, I covered the original announcement so I won’t cover that again, you can find it here. Shortly after Google made the announcement public some high profile announcements were made in support of WebM.