AppleInsider has uncovered news of an Apple patent application for a software concept called a "podmap," which is more or less what it sounds like -- a series of maps or driving directions accompanied by an audio version of the same, downloadable into a portable media device. The way I understand it, think of it not just as downloadable directions, but also a kind of real-world tour. There is even mention of episodic content delivered via RSS.
Like many Apple patents, there's no indication (or even suggestion) that anything like this would ever see the light of day, but it does tell us that Apple is looking at doing more with marrying their hardware with maps software, just like the great improvements we saw in the iPhone's 1.1.3 update. Hardly a surprise, too, that a company so strongly turning towards portable computing is thinking about the needs of portable users. But a cool idea nevertheless, and it also confirms that Apple sees the iTS's podcast model as a strong and easy way of quickly distributing content of all kinds.