I found an ebay store selling 9007s for 04 f150s. I emailed him to tell him my 04 had 9008s .He said he hadn't heard of a 9008. Now his ebay store is gone. Couldn't put up with all of the returned bulbs ill bet.
Just took a look at the 05 Mustang and Superduty owners manual at www.motorcraftservice.com. It looks like they are using the 9008 headlamp bulb now too. Maybe with more vehicles using the bulbs, other manufacturers will start making replacements. Depending on patents.