That's funny, they've made it work on the KC-135 and the KC-10, both now Boeing products. Not wing mounted, but the KC-10's hose does not deploy from the boom as the -135s does. Plus the Israelis use B-707 tankers which use probe and drogue, with wing mounted pods.
Ancient history. The only game in Seattletown is now the KC-767. And they've had to persuade the Pentagon that wing mounted pods should be vapourware on the latest tanker proposal.