Reliable contraindicator:<p>Apple comes out with something attempted by the Wintel cabal 4 to 5 years ago.  (The Windows Tablet also had magazines and many other parallels with iPad.)  However, Apple does it with a much better design, presentation, and end-to-end experience.<p>Techies who use tech so easily that they don't <i>need</i> the above so much proclaim that such things were already around, we can get better spec devices that do the same thing for cheaper, etc.  (I call this the CmdrTaco syndrome.)<p>My prediction: this is only the first step.  The functionality of the Newton/Microsoft Courier is the way forward.  Integrate a camera with the thing, and we'll have augmented reality in a practical way.  (One that doesn't make you look like a Cyberpunk RPG nerd in public.)  I can imagine executives keeping their personal assistants on tap through iChat with this thing.  I can imagine the same executives sitting in meetings with this propped up on its docking station/stand like a teleprompter, their staff listening in, and popping up relevant information for them.  (And if someone develops a software bluetooth keyboard/touchpad App on the iPhone, they can do discrete chat under the table to ask their staff specific questions.)<p>Actually, integrate <i>two</i> cameras with the thing, so you can iChat and stream the video of the meeting/presentation.<p>Apple should do some Bonjour integration with Keynote, so that you can do a low-bandwidth sharing of <i>someone else's</i> currently playing Keynote presentation on a different through iChat by just pressing a button.  The presenter could flip a setting and multicast the slides.  Anyone on the same WiFi subnet could then share it with iChat partners automatically.