The Kindle was designed to be the most convenient and portable device available on the market today. Amazon's Kindle allows you the ability to download books, newspapers, magazines, and even blogs wirelessly without any computer needed.
Like most electronic readers, the Kindle is equipped with electronic paper technology, or E Ink, which gives the Kindle's screen a sharp and natural look of ink on paper when reading on the Kindle. This wireless device is also conveniently designed to be ambidextrous and easy to use, even has a build in dictionary and Wikipedia for your convenience. Additionally, the engineers designed the Kindle so the device would never becomes hot even after long periods of use.
Amazon's Kindle is also quite mobile, weighting only 10.3 ounces. Unlike some of the other electronic readers, the Kindle does not require the PC at all to obtain new content. The Kindle uses a 3G network to deliver content wirelessly using Amazon's own network, Whispernet. Unlike WiFi, there's no need for you to find hotspots. Plus, there are no service plans or yearly contracts as this is provided by Amazon for free to Kindle owners.
With Amazon's Whipernet network, books can be downloaded anywhere, anytime in a minute. Imagine the ability to quickly download a sequel to a book, at the airport, that you just finished moments ago before boarding on your next flight. Found out that your current book is boring? Download a new book in a minute with the Kindle.
Additionally, newspaper subscriptions are automatically delivered to your Kindle each morning, plus get most magazines before anyone else. In other words, the Kindle can cater to your spontaneous reading choices on demand, anytime and anywhere.
Just like the bookstore, the Amazon's Kindle will let you download and read the beginning of the book for free before deciding if you want to purchase the book. If you like what you're reading, you can simply click a button to download the whole book and continue reading. Additionally, newspaper subscriptions have a risk free two-weeks trial.
Update: Due to high demand, the Kindle is currently out of stock at Amazon. Amazon is still taking orders to reserve spots as the Kindle is on a first come, first serve policy.
Update #2: If you don't want to wait in Amazon's Kindle line. There are some Kindle available to buy on eBay. However, Kindles on eBay are well over $450.
Update #3: Reports suggest that orders of Kindle during the 1st half of February are shipping now to customers. (March 10)