They promised they will have it. Sometimes. Maybe. They also promised the same for WinFS. And after all they dropped this feature since it never made it in time and reasonable quality. The only problem is: 9 womans will not give you a child in one month. Same goes here. It takes years to create such filesystems designs. And it takes a bunch of highly skilled guys. MS seems to be boring and outdated corpotation. Such persons will hit administrative walls soon. Then they will leave for better places as they need to have some fun from their work and it's clearly not about MS. So I guess MS would have some troubles to actually deliver ReFS and make it anyhow competetive. They did almost nothing for ~20 years. Other developed better designs. So they want to catch up and outperform these in a instant? No way, they could only compete in marketing bullshit at the moment. After all they were greedy and IFS SDK has been always problematic to get and use since MS wanted to control everything themselves. Including which FS goes where. This haves some price: there are almost no devs familiar with IFS and creating filesystems for windows. So this part of windows now become their competetive disadvantage. That's what I call shooting own legs...
