Here's one that might take a bit of crowd-sourced sleuthing from the community to solve:
Atheros, a maker of tiny, low cost Wifi modules for Netbooks and MIDs (amongst other things) has product called the AR9281 (PDF Link).
The product lives in a variety of higher-end netbooks like the EeePC 1000HE. "Higher-end" because the Atheros card supports 802.11N. These machines are often used to make Hackintoshes (guilty!) because they are the fastest inexpensive netbook you can buy. However, to get the Wifi working properly, you've needed to swap out the Atheros Wifi PCIe card and replace it with a $10 card from Dell or others because there are no Apple-Atheros drivers.
Apple doesn
