Apple has filed for a trademark on the term iPodcast according to Apple news siteAppleinsider.com
According to the article, the iPod maker made two filings with the United States Patent and Trademark Office for the iPodcast trademark, both of which are awaiting the assignment of an examining attorney.
The first filing seeks a trademark on the term iPodcast, which covers hardware-related goods, namely "computers, computer peripherals, hand held computers, computer terminals, personal digital assistants, electronic organizers, electronic notepads, apparatus for recording, transmission and reproduction of sounds, images, or other data; magnetic data carriers."
A second filing requests that the iPodcast trademark cover services, including "telecommunications services; communication by computer, computer intercommunication; telex, telegram and telephone services; rental, hire and leasing of communications apparatus and of electronic mailboxes; electronic bulletin board services," etc.
So far Apple has yet to use the term iPodcast amongst its music products.