I just arrived in San Francisco, CA for Google I/O, which we'll be covering live tomorrow, providing the event's 5 GHz WiFi and backup Verizon LTE or AT&T LTE don't go down. There was much talk a few weeks ago about how T-Mobile had lit up some 1900 MHz WCDMA in time for WWDC and other events, and although I saw a few tech press members post speedtests, we never saw any FieldTest output showing exactly where ol' Magenta is running their 1900 MHz WCDMA. I just headed over to pick up my badge and couldn't resist the temptation to bring along my unlocked iPhone 4S (how uncouth) with a T-Mobile SIM inside, alongside a pocket full of SGS3s. Anyhow, T-Mobile's PCS 1900MHz WCDMA...

The iOS 5.1 update, "4G", AT&T, and the 3G Toggle

When the iPhone 4S first launched, AT&T ominously noted (through a document leaked to The Verge) that it was "working with Apple" to update the 3G indicator to 4G...

12 by Brian Klug on 3/7/2012

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