How would peripherals work? You plug it into a TV and it boots, but how do you interact with it? How can Dell guarantee a good user experience with all those

How would peripherals work? You plug it into a TV and it boots, but how do you interact with it? How can Dell guarantee a good user experience with all those different operating systems they have to support? Aside from a thumbdrive form factor, what would this thing offer that a netbook or a tablet PC could not?