They are doing this so that when they plug in the cable or dongle, it automatically switches the N800 into host mode without having to do it via software. I really dont understand how it works, but it seems to me that there is some sort of pinout/wire modifying. I came upon a thread that had this information in it a couple of days ago

http://www.internettablettalk.com/fo...st+mode+dongle

hope that helps somewhat