http://www.raspberrypi.org/archives/1839
You can now pay to get the MPEG-2 and VC-1 codecs enabled, also the firmware has been enabled to ENCODE H.264 under its existing license.
http://www.engadget.com/2012/08/26/raspberry-pi-mpeg-2-vc-1-licenses-cec-h264/
QuoteUpdate: The Raspberry Pi Foundation let us know that US customers won't have to pay sales tax, which means patrons will only be set back $3.16 for MPEG-2 and $1.58 for VC-1 support, not $3.79 and $1.90 for the respective licenses. We've updated the post accordingly.
Thats very cool.