and basicly , the WLAN is targeted to any deisgns related to the "Spec" of 802.11a/b/g
and the WiFi is targeted to the WLAN products related compliance test items and procedures
just like any the USB-ASICs and end-products must join to PnP and compliance testing
and if it is passed , then you can use the"LoGo" , and it mean you can pass in the world ( but not 100%)