Disney to End U.S.-Based MVNO OperationsSource: Business Wire
"It's been clear since we launched the MVNO that we were offering something both unique and useful for families that wanted to provide their kids with a mobile phone with suitable content and features while retaining a measure of control on how and when it would be used," s …
Rumor: Disney Mobile to cease operationsSource: paidContent.org
Later this morning, sources close to the situation tell mocoNews.net, the Walt Disney (NYSE: DIS) Company will announce that it is closing its second MVNO in as many years rather than continue to invest in the expensive service.
Amp'd Mobile to shut down July 24 at 12:01am?Source: Engadget
Bankrupt, outta luck Amp'd Mobile sent out a text message this evening -- seemingly to its entire customer base -- unceremoniously stating that service "may" dry up this coming Tuesday at 12:01am. Get those number ports fired up, folks.
Amp'd in death throes, files to sell off assetsSource: Engadget
Maybe it was Verizon's most recent in-court request to stop serving up costly airwaves for which it couldn't pay, maybe it was the cold reality that it'll allegedly have a mere $9,000 in the bank as of next Monday -- but at any rate, Amp'd Mobile appears ready to throw in the tow …
Virgin Mobile USA Boosts Initial Sale to $506 MillionSource: Bloomberg.com
Virgin Mobile USA Inc., a joint venture of billionaire Richard Branson's Virgin Group Ltd. and Sprint Nextel Corp., raised its planned initial public offering to $506 million, five times more than the original target.

Om Malik and Ian Gilliot have written extensively on the Mobile Virtual Network Operator (MVNO) phenomenon, some of whom are raising upwards of $300m to build specialty services that ride on existing mobile operator networks.