It seems like there is significant distance between being able to move forward in a stable direction and be a generically useful and sellable product.
There are a lot of problems to be solved before such a thing could work in even an Amazon warehouse along side humans in a cost-effective fashion - and the use of this thing is it's potential working-where-humans-work ability, otherwise it's easier to have automated bookshelves. And I'd choose an Amazon warehouse because it's an ultra-structured, streamlined environment, anything else would be harder.
There are a lot of problems to be solved before such a thing could work in even an Amazon warehouse along side humans in a cost-effective fashion - and the use of this thing is it's potential working-where-humans-work ability, otherwise it's easier to have automated bookshelves. And I'd choose an Amazon warehouse because it's an ultra-structured, streamlined environment, anything else would be harder.