Debian is considering the switch also. We'll see...I've been in contact with the new maintainer, and he assured me the compability will be kept for libusb-compat.
Happy testing, # emerge -C dev-libs/libusb:1 # emerge -1 dev-libs/libusbx:1 Perhaps a Portage News item worthy after stabilization later on... I have no plans to rush this. - Samuli