well. Here in italy we call it WiFi adsl as well.. but that's not the point.
I see no connection between wireless names and dsl. If DSL get replaced by FQL (fantasy name) then you'll have a wireless FQL.
Wlan is too techie (reducing type ins) and linking it to DSL reduce type-ins even more.
Granted,you could develop it.
But then you can also develop ThisIsACrappyDomain.com, right?
don't take any offense for that, but I don't think that the domain name has any value.