Note that Fedora 11 Alpha uses ext4 as the default filesystem and has
experimental support for btrfs as well.
"Linux Magazine has put up a video of Ted Tso, one of the primary
developers of Ext4 and current CTO of Linux Foundation, on the current
state of Ext4, the current plan of Fedora to have it as the default
filesystem for Fedora 11, how it compares to Btrfs, and other insights.
Ted says that Ext4 is close to production-ready being built on the
mature and stable Ext3 codebase and being an evolutionary step that
brings in additional performance and scalability. Btrfs is a completely
new filesytem developed from scratch with a number of new features like
filesystem level snapshots that Ext4 could not accommodate. Ext4 is well
on its way to becoming the next standard filesystem for Linux while
allowing Btrfs to innovate more and mature over time."
Essentially this means you will see Plymouth graphical bootup look
better in a lot more systems and easily enabled in Nvidia systems as
well. KMS brings in a number of other benefits as well.
"Just three days ago we shared that Nouveau will become the default
NVIDIA driver in Fedora 11 to replace the obfuscated xf86-video-nv mess.
Now proposed for Fedora 11 is to also integrate the Nouveau kernel
"Enabled by default on Fedora 11 will be Intel kernel mode-setting
(along with the ATI kernel mode-setting that can already be found in
Fedora 10). More on this is also available from the Fedora Wiki. ATI
kernel mode-setting has been enabled since Fedora 10, but in Leonidas
the support will be extended to support KMS on ATI R100/200 hardware. "