A mobile device (also known as cellphone device, handheld device, handheld computer, "Palmtop" or simply handheld) is a pocket-sized computing device, typically having a display screen with touch input or a miniature keyboard. In the case of the personal digital assistant (PDA) the input and output are combined into a touch-screen interface. Smartphones and PDAs are popular amongst those who require the assistance and convenience of a conventional computer, in environments where carrying one would not be practical. Enterprise digital assistants can further extend the available functionality for the business user by offering integrated data capture devices like Bar Code, RFID and Smart Card readers.
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Mobile Display Digital Interface (MDDI) is a high-speed digital interface developed by Qualcomm to interconnect the upper and lower clamshell in a flip phone. The MDDI solution supports variable data rates of up to 3.2 Gbit/s, and decreases the number of signals that connect the digital baseband controller with the LCD display and camera.
The integration of MDDI is said to enable the adoption of advanced features, such as high-definition (QVGA) LCDs and high-resolution megapixel cameras for wireless devices, and supports capabilities such as driving an external display or a video projector from a handset.
A Video Electronics Standards Association (VESA) approved standard, the MDDI solution is currently available and integrated into select Qualcomm chipsets.
A more traditional study method was used by the Société de l'assurance automobile du Québec (SAAQ) for their 2003 study. Questionnaires were sent to 175,000 drivers and analysis was done on the 36,078 who responded. The questionnaire asked about driving habits, risk exposure, collisions over the past 24 months, socio-demographic information, and cell phone use. Questionnaires were supported with data from cell phone companies and police crash records. The study found that the overall relative risk (RR) of having an accident for cell phone users when compared to non-cell phone users averaged 1.38 across all groups. When adjusted for kilometers driven per year and other crash risk exposures, RR was 1.11 for men and 1.21 for women. They also found that increased cell phone use correlated with an increase in RR. When the same data were reanalyzed using a Bayesian approach, the calculated RR of 0.78 for those making less than 1 call/day and 2.27 for those with more than 7 calls/day was similar to cohort analysis. When the data were reanalyzed using case-crossover analysis, RR was calculated at a much higher 5.13. The authors expressed concern that misclassification of phone calls due to reporting errors of the exact time of the collisions was a major source of bias with all case-crossover analysis of this issue.
Cell Phones for Soldiers was founded in 2004, when Brittany Bergquist, then 13, and her brother, Robbie, 12, heard a news story about an Army Reserve sergeant stationed in Iraq who had racked up a $7,624 cell phone bill calling home to his family in the states.
The teenagers pooled their money to raise their first $21. The pair went on to collect change from their friends and hold a car wash that raised almost $1,000. When they went to a local bank to start an account for the collection drive, the bank chipped in another $500. [1]
The local media reported on what the Bergquist family was doing, and the coverage led to a massive surge in contributions. That, in turn, put Brittany and Robbie in the national news and won them support from across the country. That inspired the Bergquist family to launch “Cell Phones for Soldiers” as formal 501(c)3 charitable organization – with the goal of helping every service member call home for free.
The organization took a novel approach to fundraising, collecting old cell phones most of us keep in our junk drawers because we don’t know what else to do with them. The Bergquists have teamed up with ReCellular,_Inc. to process their phones and are paid for every phone they collect, with the average phone worth enough to provide a 60 minute calling card for international use. ReCellular is the worlds largest mobile device recycler, processing over 2 million phones for Cell Phones for Soldiers in 2008 alone.
