By Stephanie Goldberg,

Notebook Matthew Callahan is in his case, which is most likely where it will remain for the next nine months, it is to come.

An actor in a traveling production of Legally Blonde The Musical," Callahan is based on his smartphone, iPhone 4 to maintain contact with the outside world while on tour.

He literally lives on the bus very much said the artist, whose last tour in 2006 -. Pre smartphone It was a bit of a nightmare he said, I caught up on a lot of reading, but that’s about all I could do .

My laptop is a monster 15-inch does not fit very well on a bus. My neighbor was not happy. Thanks to his travels, Callahan realized that its smartphone can double as a computer and television. Its application allows the Slingbox to watch the Jets game in the comfort of his box

It is one of many to make this connection. Users of smartphones more and more people leave their desktops, laptops and even their TVs in the dark, and research on mobile devices to meet your basic technology needs.

A September poll by Forrester Research found that 37 percent of 18-30 years older Americans access the Internet with their mobile phones and 15 percent use their phones to watch videos or television.

Mobile data traffic is up 5,000 percent over a three year period said Dawn Benton, director of corporate communications for A T.

 This growth is a perfect example of the fact that more people choose to use smart phones and "emerging devices" such as tablets and laptops, he added.

Our goal is to mobilize all efforts to improve the lives of customers, said Benton. The devices are getting smaller and more portable, and is driven by what consumers want. For most users, it is the convenience of having everything you need in the palm of your hand. It is easier to reach in my pocket than the power of a computer and waiting to turn, Chris Bailey of Dallas, Texas,

  In the time it would take to start a computer, Bailey said he may have already checked Twitter, news section and sports on his fourth iPhone In fact, Bailey does not remember the last time he turned on his laptop.When you have a smartphone You’re a bit of a slave to him, ;he said. All this information is in your pocket … it takes over your life.

“The Web Is Dead,” a recent cover story in Wired Magazine, blamed applications for the demise, stating, “Two decades after its birth, the World Wide Web is in decline, as simpler, sleeker services — think apps — are less about the searching and more about the getting.”

Wayne Fortin of San Diego, California, only uses his laptop about once a week. He says he prefers his smartphone’s simpler applications to browsing the Web.

“The applications do everything I need to do,” said Fortin, who previously used his laptop to check his social networks and do his banking. “But the ease of being able to pull a phone out of your pocket that does the same thing with apps makes it that much easier and faster.”

Fortin said he’s contemplating canceling his cable service and just using Hulu and Netflix to watch TV shows on his iPhone 4.

“I’m usually sitting in my room, in bed, streaming Netflix right to my phone rather than going out in the living room,” he said. “The only time I use my TV is when I’m playing Xbox.”

One smartphone owner, John Sia, says he “pretty much lives off” his HTC Evo. And though he still has internet and cable in his Westchester, New York, home, per his girlfriend’s request, Sia said it’s not necessary.

“Part of it is me is being lazy and not wanting to get up and use it … But I can do everything from my phone, so why get up?”

Callahan, the “Legally Blonde” stage actor, agrees with Sia.

When he’s done touring, Callahan says he’ll most likely continue using his iPhone 4 as his primary computer and TV.

“I might just leave my laptop in a box somewhere at home and see what life is like [just] using a smartphone. Because so far, life is pretty great.”