IBM's Watson just landed a new job: helping Macy's shoppers

IBM's Watson may be putting its cognitive muscle to work battling cancer and cybercriminals, but it's no slouch at shopping, either. On Wednesday, retail brand Macy's announced that it's testing out a new mobile service that lets in-store shoppers ask Watson for help.Dubbed Macy’s On-Call, the tool gives smartphone-equipped shoppers a way to ask Watson questions about a store's products, services and facilities by typing their questions into a mobile browser. It's delivered through locatio