You may need to add the drivers as a component to the SDK instal, it should show up at that point..I'm a bit confused here. I have the SDK installed, but adb_usb.ini isn't there. Also, are we to remove any and all drivers and simply have the device show up as "Other Devices-->M470BSA"?
Also, it will show up as ! in other devices until you edit the adb_usb.ini.