This difficult task would be tantamount to trying to decide what cell phone to get when Option A costs a certain amount except for calls made between 9:30 a.m. and 4:30 p.m.

FORBES: The CARD Act's Winners and Losers

What if every second line in the country is a cell phone -- and if people do a lot of their long distance calling on the second line?

FORBES: Cut the cord

Some details as to Martin's thought process around that time may someday be gleaned from what he told his girlfriend back in Miami in a cell phone conversation, his family's lawyers said.

CNN: What happened the night Trayvon Martin died

They were asked to reflect on how many hours they talked on their phone a month, how long they had been using their cell phone, if they remembered how many phone calls they made a month and to what side of the head they typically held the phone.

CNN: Study fails to end debate on cancer, cell phone link

Mr. JOE FERRAN (Spokesman, CTIA-The Wireless Association): What was a phone a little while ago is no longer a cell phone.

NPR: Google Enters the Cell Phone Race

What features would you like to have in your new car or on a cell phone or in a coffee machine?

NPR: Tips for Fighting Technology Overload

What if he had reached for his cell phone and police thought it was a weapon?

CNN: Helpless as my son, 13, was profiled, cuffed

And if you just did one thing this hurricane season, make sure you've got a good family communication plan and what your backups are going to be, so when you get on that cell phone and you get that busy signal you're not stuck, you know what the next step is.

WHITEHOUSE: Press Briefing