The Amazon Kindle reader is not only the most popular e-book on the market today, but next to the iPhone is one of the most popular electronic devices. At the time of writing ran a week and those who have placed orders for the Kindle will be waiting for weeks to do it!

While the Kindle is definitely the market leader in the market for e-book reader, Apple is fast on his heels with the iPhone. Listen to music or watch your favorite movies to games, you can do with the iPhone, why not read books on the device as well? It seems that Apple anyway and as a result quickly trying to give the Kindle a run for its money as an electronic book reader.

Recently it was announced that several major publishers have signed deals with ScrollMotion, New York developer of mobile applications. ScrollMotion is a new application for the iPhone and iPod Touch that will allow consumers to buy and read electronic versions of newly released books and best sellers. This application brings Apple iPhone more directly in the ebook business in a big way.

Despite Apple’s ambitions, there are two major differences that should favor the Kindle (at least for now) as strictly an ebook reader. The first and most obvious difference is the size of the screen. Try reading a chapter of your favorite book on a 3.5-inch display, the size of the screen on the iPhone, and is likely to go mad. Compare that to six-inch diagonal screen Kindle, and there is no comparison in reading comfort.

The other main difference between these devices is the technology used in the same screens. The Kindle uses electronic ink technology to display text while the iPhone works as a computer monitor where light is emitted to display text. The difference of these technologies is dramatic. Reading the text on the Kindle, it seems that the text paper and there is virtually no eye strain, even after long reading sessions. With the iPhone, reading the text is very similar to reading your computer screen (on a much smaller scale) and it is almost certain to strain your eyes.

When you compare these devices side by side as strictly ebook readers, a larger screen and display technology easily favors the Amazon Kindle. There are two things for Apple, however, which could exceed the success of the Kindle. The iPhone was the first of the availability and price, and the second is the convenience of being able to do everything with a small device. The iPhone is available and cheaper than the Kindle. As for screen size and potential eye strain, consumers may be willing to make these sacrifices if it means that you can use one device for everything.

The ideal gadget would have the features of the iPhone and the Kindle, but that will never happen in the short term. I think at the end dedicated ebook readers like the Kindle will always have an advantage over small communication devices and entertainment like the iPhone. This does not mean Apple is offside. Who knows, maybe Apple “iReader” be just around the corner?

When comparing the Kindle vs. iPhone as eBook reader, it is important to determine exactly what your needs are in a reading device. It is also important to know what the Kindle can and can not do. To do this, read the Amazon Kindle review here.