Anybody know if there's a way to access iTunes from an iphone native program? Is there an sdk for that? i.e. - is there a way I can write a native iphone program and put in a 'buy' button that will bring up iTunes and go to some artist's song? Or better yet, just buy it right away?
In big-iTunes, find the song your want and select Copy Link. Put the link in your iPhone app.
You can then open this link using UIApplication's openURL: method and it will open in iTunes.