There was an HN discussion recently on what you understand and know and assume, and extending that expertise out into areas where You Have No Clue, and how that goes badly wrong for smart people.<p>iPad isn't aiming for us members of the nerd herds that are using laptops and netbooks and for whatever reason we're hauling them around; it's not a laptop replacement.  Duh.<p>It's an eFrame for your desk that you can do stuff with.<p>It's a data entry device for the back of an ambulance or in an ER.<p>It's a device that can replace a rack-n-stack LCD console in a server room, or that can sit on an operator's or guard's desk or maître de's podium, showing status.<p>It's a device your mom can use for pictures of the kids, and for hosting cookbooks and recipes in the kitchen.<p>Add a cash drawer via that dock connector and...<p>Its an instant and portable Point-of-Sale device; the Apple folks will have these all over the Apple Stores just as soon as they can.<p>It's a dorm TV.<p>It's for a bunch of tasks we haven't even yet thought of.<p>Most of us nerds suck at this non-nerd UI stuff.  And we can assume that what we want and what we understand and what we need is what everybody wants.  And that isn't necessarily reality.<p>Whether Apple hit their target markets here remains to be seen.  But I can see use.