This is awesome. On one hand, it's a little scary to think these may be walking around soon and hopefully not controlled by some nefarious entity, but on the other hand, think about all the awesomeness that this can be used for. I immediately thought of the mobility-impaired and how this could them get around. Space/ocean exploration, search and rescue, mining, etc.
I've been talking about this for years. I worked as a cook at a KFC in high school (in the 90s) and we would ladle grease from the cookers (NOT CRACKLINGS, these were always disposed of) and would pour in a powered, secret ingredient mixture packet. Never added water. Ironically, biscuits and brown gravy were the only thing I'd eat on meal breaks. Oh, and the cole slaw was good and freshly made, too.