Since it seems like RTI is content with their SqueezeBox/Vortabox option...
Both units seem like they should provide the necessary control and feedback.
If you tell me that you'll work on a driver, I'll gladly get a unit in hand for me to test.
The protocol is available on each companies website. My preference would be for the Rotel unit, but I would be happy to have any option that didn't include a NewEgg built computer stuffed in a rack.
Thanks!
Andy