On 2011-12-14 22:07:51 +0000, NeilBrown said:

(but I advise you never to plan on using software that hasn't be released yet
- that way lies madness).

It was more a comment on the pace of btrfs development than a desire to 
switch right away.

I've only tried btrfs on removable drives so far, with unimportant data.

But I won't rule out madness.  It did no end of good for Ford Prefect. 
It sounds like a good deal.
-- 
Troy Telford