It's possible that they're just saving these panels for the iMac first and saying, oh, well, the Mac Pro customers can go get their own monitors for now. It's also possible that they are simply not going to make a 4K monitor because of size issues. For a quad 27 inch display, it's going to be a long time before that is inexpensive enough to go on an iMac. This one, this 4K display that isn't even that high resolution is $4,000. And maybe next year it halves in price and it's $2,000. But this isn't even as high resolution as what we're talking about.