Last week Google announced the creation of the open source WebM project for the VP8 video codec. One week later, the developers for the open source VideoLAN project dropped a release candidate for their VLC media player that supports VP8/WebM.
The newest version of VLC includes lots of bug fixes and performance improvements too.
Mac OS X is getting some much-needed user interface tweaks.
Also, DVD, flv, MP4, AVI and AVI/ODML demuxing fixes and improvements are in there too.