Today’s website: appcelerator.com

Why?

Because of the great product they offer for free: Titanium Developer.

Titanium is a tool that allows to webdevelopers to build native iPhone and Android apps without  needing to learn cocoa or java.

It will compile your project and even help you release it.

They have a great section with resources, screencasts, tutorials, code examples and documentations, and a nice community to share and solve your issues.

Take a look.