The big telecom show Mobile World Congress kicks off in Barcelona this week. Expect a lot of talk about phones and the things you can do with them. After reports last week that Apple and Goldman Sachs might launch a credit card potentially tied to the iPhone's digital wallet, there will probably be plenty of talk about mobile payments. But weren't we supposed to be paying for everything with our phones by now? Host Molly Wood talks with Lisa Ellis, who covers payment services at the research firm MoffettNathanson. She says when we moved to chip-based credit cards a few years back, we kind of missed the mobile boat.

Today's show is sponsored by Kronos and Topo Athletic.