How comes…

I am reading through the normal gadget blogs and I stumble upon this:

“Hailed as the “planet’s first on and off-site backup solution to use ZFS,” these units provide up to 1TB of local and off-site storage, optional RAID 1 local redundancy, twin gigabit Ethernet ports, OS X / Windows / Linux compatibility and the obligatory rock-solid stability that ZFS is known for.”

Why is ZFS known for anything like rock-solid stability? The last thing I know was that a certain consumer OS manufacturer released his ZFS implementation to the public in read-only-configuration.

Source: Engadget