How to develop iphone applications using xcode and mac 10.4.3 ?

Xcode is the only LEGAL option to use. Objective-c is the default language it uses, but you can use C, and C++. You could also develope for the illegal installer.app. I dont know its main language, probably C++. It is a lot less limiting than Xcode. I suggest you get a book on which ever you decide because online information is not the greatest.

psufan is right.  XCode is the only legal option to create apps that run on the iPhone itself. I've never heard of the illegal installer but i don't discount it's existence.

You do also have the option to make a web based app.. Basically, the iPhone user loads up the Safari browser on the iPhone, navigates to your app site, then runs it from there.

Along with the book, you can also visit Apple's developer portal and read up on the iPhone documentation.  They have docs specific for XCode and docs for the web based application.

Xcode tool good for iphone apps development.cocoa is API and programming (lke c,objective - c , java , c++).which one good for do web application for iphone.

Thank you .

The only specific software package I have seen to develope specifically for the iPhone is in the SDK. I forget what its called now. It might be Interface builder, but I thought there was something else. The documentation on Apples website is not very good. They tell you a bunch of information, but none very helpful.

Thank you