Practical applications of the technology seem limited to companies creating giant advertisements on a crowded beach, but resorts could use the Beachbot to designate private sections of their waterfront property, letting guests reserve a premiere spot to soak up the sun. And were you and the Beachbot (and a laptop) the only survivors of a shipwreck that washed ashore, it would certainly be a useful tool for spelling out S.O.S. and rescue messages.