How do I build and install applications on a jailbroken iPhone without being in the iPhone Developer Program?

I would like to build and install my app on my jailbroken device without paying the $99 required for the iPhone Developer Pr开发者_运维知识库ogram. I have Rock and Cydia... what is the easiest way to do it (if it's possible)?

Thanks.

That's a broad question.

I recommend iPhone Open Application Development, 2nd Edition By: Jonathan Zdziarski.

The Open Development tools require the Apple Tools. You can download the Apple Development tools for free from the Apple Developer site. The $99 fee is just if you want to install and deploy in a fashion compatible with the App store.