Phonegap is an Open source development framework that enables you to develop mobile application for multiple mobile platform i.e. Android, iOS, Blackberry, Windows, Web OS and more.
For Windows Setup
1. Requirements: Eclipse 3.4+
2. Install SDK + Cordova
1. Download and install Eclipse Classic
2. Download and install Android SDK
Phonegap is powered by Adobe which provides developer to easily create and deploy variety of web application.
For Information Check it out its website and download Free Mobile SDK. [button color="red" link="http://phonegap.com/"]Phonegap.com/Download[/button]