Andrew Webber has posted pics of his completed stereo card for the Apple IIGS. Very soon now, the card should be available for sale to the public (pricing not yet announced). I know I’ll want one or two.
Update: pricing is established at £34.95, or about USD $54 plus shipping (although a discounted price of £30 for active comp.sys.apple2 participants has been offered). This run is about 20 cards — after these are gone, the next revision will have an onboard 3.5mm jack. I rather like the mounting plate myself; you don’t have to open up the Apple IIGS to disconnect the speakers.