i think the military probably had these things laying around 10 years ago way before these people made their iphones and itouches .. cell phones, touch screen keyboards, gps, small high resolution cameras, etc..
they aint suing them to get royalties!!!
but hey.. i give you that they are copying it pretty good.. that is called good chinese reverse engineering !!! The third one in the bottom looks exactly the same.. too bad it runs windows. It is probably really slow ...