Sounds impressive, but, from the last CAM:
We now have a fully featured IDE.device for the AmigaOne hardware (PIO mode only; the code for UDMA transfers is already in place but requires further testing) and an replacement for parallel.device.
If only PIO has been seriously tested yet, U/DMA needs some serious testing. The most demanding applications for it in my experience tend to be CD burning, DVD playback and disk to disk transfers. CD burning particularly though, because the transfer has to be synchronised/timed properly. Though from what you said with the demonstration, I guess the UDMA code was in use then.
I wish I had been there, but my business has been picking up this month, and it's still in its early stages so I can't go turning down work. :-(
Still, everything else about OS4 sounds cool. I'd guess June for its release from what you've said and from what I've heard (and no, I have no 'exclusive' sources).
