DealNews.com, a website that promotes the best and hottest online deals each day, posted an article today on the psychology and reasoning behind publishers discounting, or even giving away their iPhone applications on iTunes.

Some of the reasons include the garner more reviews, increase downloads, and make more money from in-app advertising.

Take a look at the article, written by Josh Smith.

What are your thoughts on offering a discount on iPhone applications?
What do you think about charging for apps versus giving them away?