Pro iDSD is still there, and will never go
I can't write my impressions of the devices as nicely as some others can, so I'll just try a comparison:
Pro iDSD is technically outstanding, especially with the upgrade tubes and the many filters, R28 is musically thrilling, almost like a live concert.
Since I have the R28, I only listen with him, let's see how it looks in another 2 weeks.
I am thinking of putting my ifi stack on the desk, and replace the R28 with a R27.
I have already had countless devices at home, but none has excited me as the R28.