Ditching Your Smartphone Bill and Going Wi-Fi Only

[Commentary] It is almost impossible to imagine life without a cellphone. But imagining life without a cellphone bill is getting a lot easier. If millions of TV watchers are making do with a money-saving patchwork of online shows, over-the-air broadcasts and services like Netflix how long will it be before wireless subscribers decide they can get by making calls with Google Voice, sending texts via WhatsApp and asking for the Wi-Fi password every time they enter a bar? The question isn’t theoretical.