This just in from Jacqui Cheng on Ars Technica:
"Apple is telling "select" developers to prepare their apps for a demo in January—one that won't be limited to a fixed 320x480 iPhone screen—according to sources speaking to Business Insider. This is offered up as the latest evidence that Apple is planning to introduce its long-rumored tablet very soon, although it's not expected to go on sale in January.
"Apple apparently hasn't told developers much, except that apps for the demo next month should be available in full resolution. This, of course, indicates that they will run on a device with a larger screen than that of the iPhone and iPod touch, and the latest rumors about the as-yet-unannounced tablet indicate that Apple may be going for a 10" or 11" screen.
"Other recent rumors have indicated that the tablet will be more about media than computing—unsurprising, since computing on a device that is limited to tablet form can be kind of a pain at times—and that it may be available to consumers in the spring of 2010. However, if Apple is telling iPhone app developers to prepare for this demo, it would support the previous rumor that the device will be running a modified version of iPhone OS.
"At this point, it seems all but guaranteed that something is up at One Infinite Loop (the rumors, whether correct or not, always come to a head just before an announcement). The only questions that remain are: what will it actually look like, how will it work, and how much will it cost?"
Again, this report suggests that the new Apple Tablet may revolutionize the print industry as we knew it.