A closer step to Apps

Frankly though I have changed to Mac from PC last year. I am still know nothing about Apple Apps, because I don't have a iPhone.

Last week my wife bought a iPod Touch and now I am step closer to Apps. Can I write an Apps soon for fun? I found there is free tutorial in the internet. Awesome!
http://itunes.apple.com/itunes-u/iphone-application-programming/id384233222

Then next step in the far away future. Submit a Apps to Apple Store!
Some programmer in China shared his painful experience.
http://lordhong.javaeye.com/blog/343768