Yeah, TBH I never expected anything would work out of the box with the "isochronous transfers support" feature. For me it sounds that certain technology has been enabled in the USB stack, and then 3rd party drivers and programs could make use of it. I'm actually really surprised that this many audio devices do work with this initial release, and we even have a new program to record audio from them! This is way more than I personally was expecting at this point.