The thing is....it's less portable than a smartphone, and less useful than a laptop.
Most people already carry both - will they carry a third? iPhone sells well because you've got people who aren't serious enough about smartphones to use a real one with a proper notification system and multitasking, they aren't serious enough about photography or videography to carry a proper digital camera or camcorder, they aren't serious enough about gaming to carry something like a PSP or DS, and they aren't serious enough about digital media to carry a dedicated PMP, like an Archos device for example.
You aren't going to use the iSlate/iPad/iWhatever to make phone calls, because you can't fit it in your pocket. You can't use it in any other position than sitting down, really.
And you're not really going to use it as input - virtual keyboards are not a good replacement for physical ones unless you aren't writing much. It will be a capacitive screen as masta said, so you'll be inputting information with your fingers, so it'd be useless for anything that requires detail, like image editing, etc.
So what? E-reader? But even for those who want to pay for it - content is significantly cheaper on things like Amazon Kindle and B&N Nook - because these companies are media distributors to begin with.
Most people already carry both - will they carry a third? iPhone sells well because you've got people who aren't serious enough about smartphones to use a real one with a proper notification system and multitasking, they aren't serious enough about photography or videography to carry a proper digital camera or camcorder, they aren't serious enough about gaming to carry something like a PSP or DS, and they aren't serious enough about digital media to carry a dedicated PMP, like an Archos device for example.
You aren't going to use the iSlate/iPad/iWhatever to make phone calls, because you can't fit it in your pocket. You can't use it in any other position than sitting down, really.
And you're not really going to use it as input - virtual keyboards are not a good replacement for physical ones unless you aren't writing much. It will be a capacitive screen as masta said, so you'll be inputting information with your fingers, so it'd be useless for anything that requires detail, like image editing, etc.
So what? E-reader? But even for those who want to pay for it - content is significantly cheaper on things like Amazon Kindle and B&N Nook - because these companies are media distributors to begin with.