So, Microsoft finally delivered Beta 1 of Cairo. If it took them approximately 11 years to deliver the first beta (about 200 years Internet-life time) how long until they release the first final version?
And how long until someone decides it is actually a good idea? As with anything database related, a Database-driven file system will only be as good as its data.
Corporate servers know where the data they need is located. And very seldomly need to do versioning.
Home users never know where a file is, but will be too lazy to fill in enough metadata about any file to make such a system useful. And will still not be able to find their files back.
I might be a bit too pessimistic about it, but I just don't see the need for this anymore. Of course, I'm sure MS' marketing team will make it an absolute hit (TM) and manage to squeeze some more licensing money through it.
Anyway, if you're feeling adventurous, here's the link. (You do need to be a subscribed MSDN user).