If IQ Audio doesn’t have an image that supports WiFi out of the box maybe they will soon. Put in a feature request. I think the owner of IQ Audio posts frequently here too. I can’t believe you’re the only person who would want this.
I think IQ Audio which has been very supportive is well aware of the issue. They have a “test” image that might work, but since the built in wifi is apparently very weak, I think it would be great if they could provide support for the Edimax wifi usb card. Around $9 on Amazon and great reviews.
Perhaps a Perl script to run before installing the image card would work.