Ask, before I do web development, website should inflicted an iso application, and what the best way to learn?

I am familiar with php,. Net, j2ee, html, css, mysql web development and other stuff, but now wants to be made directly to the site of a small iso applications (like those that buy site), what learning pathways need?
First Objective-C2.0, then what?
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See the official "one of my first iPhone application" development model and common learning grammar

Down on their own insight
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My first iPhone app wrong
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Web applications made directly to the size of the screen size can be adapted to the iphone
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Is ios .......
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In fact, you can make a version with jquery moble page, then, to be ios framework, it can
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In iOS with Web access, so the minimum
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With PhoneGap, you can directly html5 + js + css page into iphone running above. . . And you can do on native programs would like iphone.
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Running above the page into ipone try

You can also take a look at the class ios web development books,,,