Ed/X/Ubuntu 7 WON'T include 3D Beryl or Compiz by default
In this months LinuxUser Jono Bacon says that "...it was decided that Compiz and Beryl aren't mature enough..." for 3D hardware accelerated graphics drivers to be included by default.
If you want a *buntu distro that will always be 100% free-libre-open and never have any binary graphics drivers then you could try GnewSense.