Framework used to develop mobile applications. Can be used to create apps for all major Operating Systems including iOS, Android, BlackBerry, and Windows Mobile OS

Features:

PhoneGap apps are designed using HTML, CSS and JavaScript, and then PhoneGap translates that into the native format
The UI is a web browser view that takes up the entire screen of the device
The application logic is built using JavaScript
Once the app has been completed, PhoneGap will translate that to a binary application archive for the native system that the app was designed for
PhoneGap can work with an application server

Pricing:

PhoneGap UI

The UI is a web browser view that takes up the entire screen of the device

Developer builds the app content, interface and navigational features in the UI using HTML and CSS

Can use whatever HTML/CSS editor you want

PhoneGap Emulator

Runs in Google Chrome

You can emulate all of PhoneGap's core API's and develop in Chrome's developer tools

Pros:

HTML, CSS and JavaScript are well known to a lot of developers
Apps created through PhoneGap are distributed and installed in the exact same way that native apps are through their respective app stores
PhoneGap is opensource so it is completely free to use and does not require a license
Developers can build their apps for specific systems without needing the local SDKs

Cons:

Since it is open source, the plugins that exist may not support the platforms desired
If the plugins needed don’t exist, then you have to build the plugin yourself
The performance of PhoneGap apps is lower than the performance for native apps