Hi, after having used XBMC for 8 years or so, I was quite delighted to see it running from the Zero. However, setting up the WiFi dongle was quite a pain as I couldn't get any of 3 USB hubs to work. Some thoughts:
(1) If wireless was detected, but not connected (and given that the device or driver is whitelisted to support this), how about spinning up a wireless AP and dedicated dhcp server? This would allow taking the device somewhere, plugging it into a screen and connecting to it from a mobile phone.
(2) USB gadget mode support with the ethernet driver would be handy. I could plug the device into my laptop and ssh into it, or copy files into the storage area, etc. This would also allow a simple config tool to setup basic system settings. With a FAT formatted storage area, it would also be possible to present the device as USB storage - probably the easiest way to fill a library from a laptop.
Cheers!