20 Things We Don't Know About the iPhone.

Unanswered questions about the year's most hyped device leave doubts about its real-world applications.

Steve Jobs unveiled his breathtaking iPhone vision Tuesday, calling it a "magical" device that would "change the world" when it ships in June.

Jobs's use of the word "magical" hit the nail on the head. His keynotes are more than just speeches. They're magic shows.

More info: http://www.pcworld.com/article/id,128511-c,cellphones/article.html