If you turn on your ps3 you will see that Firmware 2.2 is alive. It is a very quick update which includes BD-Live (blu-ray profile 2.0), Divx over 2gb, Divx subtitles, playlists transferred to the psp, and the ever handy resume-play.
Nothing official yet at playstation.com as this is being posted.
Here are the first four BD-Live compliant discs.
BD-Live Demo at CES2008
[Source: Sony PS3 Modding - Homebrew, Upgrades, Mods, and Hacks]