For those of you who travel a lot, and love to read whenever the opportunity is available, there is a convenient product called the Kindle. Kindle is developed by Amazon, and it's a platform that is considered software/hardware.

The applications for are made for Windows, iOS, Blackberry, Mac OS X and the Android. The Kindle was first released in the USA on November 19, 2007. The Kindle hardware uses a certain type of paper and ink that has 16 different tones of gray. The kindle is able to download content from Amazon's Whispernet using the Sprint EVDO network. However, the newer versions of Kindle uses AT&T's network. All of this is done by a wireless connection.

The Kindle hardware device is built to be used without any computer connection, and Amazon Whispernet is open to any user without any recurrent fee or wireless subscription. In fact, all the Kindle models offer free access to the Internet in the U.S.A. by the use of cellular networks (as mentioned earlier.)

On March 03, 2009 Amazon.com launched a newer application called Kindle for iPhone that was available for customers in the iTunes App Store. This allowed iPhone and iPod Touch owners to read Kindle content on the device. Through special technology called "Whispersync", customers can read books or content that has been uploaded to the device. Amazon announced the Kindle DX on May 06, 2009.

This particular version has a larger screen than its previous generation, and it also handles simple PDF files. A convenient thing about this version is that it is also is the thinnest device that offers an accelerometer, which allows the user to effortlessly rotate pages between landscape and portrait directions whenever the Kindle DX has to be turned on its side. It is advertised as more fit for displaying newspaper and textbook content.Amazon has also released a Kindle package for the PC and Macintosh that is free of charge. This allows the users to read Kindle books on a computer that has either a Windows or MAC operating systems.

This device is a bit on the pricey side, but they are a good investment for those who would enjoy the convenience of having all of their books on one handy device.