It's weird, of all the people I know who hate the whole process of getting clean dishes, you are the only one who hates loading the dish washer instead of unloading it.
Anyway, I think that loading the dish washer is sufficiently complicated (manipulating fragile objects, allocating weird shapes into boxes efficiently, moving around a human environment, etc.) that only full fledged robotic butler could do it. I'd say more than 10 years, with 0.9 confidence.
In the mean time, you should really not rinse the dishes before putting it in, otherwise the device will have no benefit: just remove the bigger food residues and chuck 'em dishes in as they are.