ZFS to become default file system in OS X?

[Adam Bridge]

The thought of making the conversion to ZFS from HFS makes me shudder.
It must really be useful only for new hardward or one in which you can
start from a virgin disk already formatted with ZFS.

This is accurate?

I appreciate the insight into why this file system is valuable - and
if it IS a part of Leopard then I understand why having it available
for developers to do some serious banging on in advance of the release
would make a fall release a Good Thing.

Are there consequences for the handling of metadata as a result of the
file system change that a new Finder might make good use of (not to
mention, say, Spotlight, etc)

Adam