Any advantage of programming natively for mobile development?

Question

I need to develop applications for a company on some major mobile OSes, specifically, iOS, Android and WP7.

I was initially planning to code three separate applications

Answer 1

I personally use PhoneGap. I keep my ui library at a minimum, maybe use only Jquery Mobile. And as long as the javascript code is well written, maybe use a mvc framework, I don't really notice any performance loss.

I sometimes use a remote php server for the database, and the ajax calls run smoothly, some other times i use the html5 storage witch works smooth as well.

So unless you want to learn java or objective-c... :)