To setup an Apache Cordova project you need NPM. When you've done that you open a terminal.

I've started working on a gitignore file for Phonegap projects. It can be used with the folder structure explained in Phonegap and multiple platforms.

This post provides an example of how to work with phonegap and multiple platforms. Folder structure to use and how to share the www folder between projects.

How to show a Google map in your Phonegap app using Google Map api V3, and what whitelist urls to add to your project.