The judge recounted how prosecutors had claimed they could prove Valle was doing surveillance on targeted women because cellphone data placed him on the same block as at least one of them around the time he was exchanging Internet messages with a co-conspirator about his interest in kidnapping her.
Prosecutors also want to have an FBI agent testify to his analysis of Mr. Valle's cellphone-data records, which prosecutors say show Mr. Valle placed calls that were routed through cell towers near some of the homes or workplaces of victims they alleged he was stalking.
"A major trend is increasing cellphone capacity for data content, " Shah notes, adding that the new iPhone from Apple will only spur demand for more available content.
Facebook, Twitter, 4G, iPhones, iPads, ubiquitous wireless and Web-enabled cellphones, the cloud, Big Data, cellphone apps and Skype did not exist or were in their infancy a decade ago.
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The two-devicers argued that the connectivity for phone calls would come from a simple, bare-bones cellphone while all the fancy data management would occur on a Bluetooth-tethered, PDA-like device unbound from cellular contracts.
Pricing remains an open question, but considering that the Tab's a full-on cellphone in addition to a data device, it seems that American customers might need to be comfortable with another contract if they want in on this thing.
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When mathematician Vincent Blondel studied the location and billing data from one billion cellphone calls in Belgium, he found himself documenting a divide that has threatened his country's ability to govern itself.
Most cellphone companies keep historical records of location data for a year or more, according to a Justice Department document obtained by the ACLU through the Freedom of Information Act.
Data accumulated by Reuters on cellphone unit sales by each manufacturer indicate that Motorola actually lost about 1.1 percentage points of market share in the third quarter to Nokia which slashed prices to gain share.
Data accumulated by Reuters on cellphone unit sales by each manufacturer indicate that Motorola actually lost about 1.1 percentage points of market share in the third quarter to Nokia (nyse: NOK - news - people ) which slashed prices to gain share.
As wireless customers spend less money on plain-vanilla cellphone voice calls, carriers are betting that data and entertainment services like text messaging, over-the-air music stores, streaming video and mobile Web browsing will lead growth.
The service works through any cellphone (not just smartphones), because it uses network data and not GPS to locate potential customers.
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According to Davidson, Qualcomm believes that one way to deal with the thousand-fold explosion of data is to put small cells in between all the main cellphone towers.
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Other examples: 65% of marketers said they would distribute a customer's cellphone number, while only 47% of privacy execs said their companies allowed the data to be shared.
Magistrate Stephen Smith of Houston, Texas, who approves such surveillance orders, has been studying the available data and estimates that federal courts alone issue 20, 000 to 30, 000 cellphone tracking orders annually.
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