It would be of great interest to me if a PC compatible version is released, as I'll always have to use a PC notebook for business needs.
I sent a message to Apogee a while back asking if they planned to offer a similar product compatible with PC's, but got no answer.....all I got earlier this year were vague and/or incorrect answers to other questions about the Mini-DAC FW availability from them, so maybe that's to be expected from Apogee. I'm quite unimpressed by their customer service at this point.