is ZFS for the masses a lost cause since Oracle acquired it?
No, it's not a lost cause.
Before ZEVO was acquired by GreenBytes, there was a tremendous amount of work to make ZFS as close as possible a fit with the needs of everyday users of Apple's OS.
Development at GreenBytes continued, for a while, with less consumer focus. GreenBytes began seeking a new home for ZEVO, then announced that there'll be an update for Mavericks, OS X 10.9.
How much would it cost to buy ZFS from Oracle? Or at least license it
I have no idea, sorry.
#1 - they don't care about servers
That's not entirely true, but that's a separate topic.
More generally, Apple does care about integrity of data.
I think ZFS is a great idea
proper support
Since I began testing Mavericks I have seen enough to make me suspect that there's to be support for an additional type of file system (or storage system); and/or simplified use of disks where support for a particular file system is not (or not yet) integral to the OS. However, no hint of what the system(s) may be.
The natural coming together of communities under OpenZFS should, to a degree, ease concerns about support.
probably another two OS versions away (two past Mavericks).
I guess: 10.10 at the latest.
everything is coming with a single drive
This is heresy to some, but it's possible to benefit from ZFS
without redundancy of data. I use ZEVO with a MacBookPro5,2 with only one drive, an sshd. Simply understand two things: the need for backups (that need is not specific to ZFS); and that if an error is found, there'll be no automatic repair so restore the affected file from a backup.
Assurance of integrity of data. And if an error occurs, knowledge of that error.
Compared to the no-knowledge mindset that's allowed with HFS Plus, those things are huge wins.
when's the last time you ever heard of a Mac user (or Windows user, for that matter) experiencing bitrot-related issues?
Quoting from
http://www.reddit.com/r/apple/comments/1ndjl9/get_zfs_on_your_os_x_with_openzfs/ccjegee
We rarely find complaints because nothing in OS X as we currently know the OS is capable of detecting data corruption.
Simply: corruption occurs. No hard disk, sshd or flash drive is everlasting. Effects of corruption may range from negligible to show-stopping but users of HFS Plus will almost never realise that the effect is due to corruption. Only when one begins to use ZFS does one realise the situations in which corruption may occur.