I haz success: YellowSn0w update works a treat
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Biggs has written for the New York Times, InSync, USA Weekend, Popular Mechanics, Popular Science, Money and a number of other outlets on technology and wristwatches. He is the former editor-in-chief of Gizmodo.com and lives in Bay Ridge, Brooklyn. You can Tweet him here and G+ him here. Email him directly at john@techcrunch.com. → Learn More
I just installed the latest yellowsn0w (0.9.4) and reset all my network settings (Settings->General->Reset->Reset Network Settings). The phone rebooted and T-Mo popped right up. Note I also had 3G turned off.
Anyone else get things to work?