Even as giant cellphone carriers like T-Mobile US Inc. and AT&T Inc. unveil aggressive new pricing plans to steal each other’s customers, a tiny Cambridge startup called Scratch Wireless has begun offering callers a monthly price that can’t be beat--zero.
The catch is that customers will have to do much of their phone work — whether making calls, sending texts, or browsing the Internet — over free Wi-Fi Internet connections; if there is no Wi-Fi nearby — say, while driving along the highway — then callers would need to connect to a cellular network, and pay for it.
Scratch offers optional packages for users to connect to the Sprint Nextel Corp. cellular network that range from $1.99 for one-day use, to $14.99 for a monthly pass. Full story for BostonGlobe.com subscribers.
Hiawatha Bray can be reached at firstname.lastname@example.org.