I suspect this will be a disaster. The article already hints at the reason why: "there's no indication yet that it has impacted Cronus or XIM accessories. Cronu

I suspect this will be a disaster. The article already hints at the reason why: "there's no indication yet that it has impacted Cronus or XIM accessories. Cronus and XIM accessories are controversial since they allow users to mimic a mouse and keyboard as an Xbox controller." Currently, most third-party accessories correctly use their own USB VID:PID pair and are recognised as controllers by virtue of correctly implementing the USB HID protocols. By deciding to block anything that isn't approved by Microsoft, they'll necessarily have to whitelist a set of VID:PID pairs for devices that have been approved, and so unapproved third-party accessories will just fake their VID:PID pairs and present as another device. Once this happens, there's no way of blacklisting the clones without impacting the genuine devices, unless they further have undocumented identification methods e.g. incorrectly responding to standard messages (e.g. the PS3 controller reported an incorrect number of axes, but would return data correctly when queried) or adding non-standard packet types.