Is iPod SD the ultimate iPod?

I spotted a link on iPod Hacks to an interesting article by zuk2000 on Sast Wingee's blog.  The article, entitled iPod SD – put an iPod into a zillion PDAs/Smartphones instantly, offers an analyses of how Apple could put an end to all the recent talk of the iPod's demise by making the iPod essentially an accessory to all those PDAs and smartphones instead of an alternative to them. Here's what he has in mind:

"If the iPod SDIO really existed," he muses, "it could instantly be added to a Smartphone (based on Palm OS or PocketPC OS) with a SD slot with SDIO capability, and iTunes mobile software could take advantage of the GPRS/EDGE or EVDO services so that customers could directly access the iTunes store and download songs completely bypassing the wireless company but using the data service offered by the wireless company. Now wouldn't that take the fight to the smartphone market? "

I think he might be on to something here, although I don't hold out much hope that Apple would actually do such a thing. Then again, I've been wrong before (and will be again, don't you worry).