According to The Register, Apple filed for a design trademark in May for a tablet-like device. You can see the drawings to the right.
I'm sure everyone would be skeptical if Apple came out with a plain old tablet computer. I know I would be. So, that's why I have a feeling that they're up to something else.
Imagine if they came out with a tablet-like device that was only 5 or 7 inches in size. You could access Safari, iTunes, iPhoto, iCal and a couple other apps. The device would most definitely have WiFi and Bluetooth and would be compatible with Airport Express and AirTunes. For professional users, it could double as a graphics tablet and for home theater types it could be a universal remote. And there would be an optional keyboard for the times when you were sick of using a stylus.
What would be the kicker, in my eyes, would be if it had a small hard drive so that I could use this as an iPod. Then I could travel with it. It would be my PDA, mp3 player and computer on the road.
A device like this is something I could really use, but the biggest issue is the price point. If they released something like this for $1,000, I would never be able to afford it, but if they could do this for $600-700, I would really consider it. At that point it would be the same amount as some high end cell phones. I doubt it's feasible, but that would be the only way I could use something like this.