I learned by taking the free Stanford iPhone class. You can find details here: http://www.stanford.edu/class/cs193p/cgi-bin/drupal/ http://www.stanford.edu/clas

I learned by taking the free Stanford iPhone class. You can find details here: http://www.stanford.edu/class/cs193p/cgi-bin/drupal/ http://www.stanford.edu/class/cs193p/cgi-bin/drupal/ The lectures are on iTunesU and you can even do the assignments to get some practice.