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       http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing,
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     "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     KIND, either express or implied.  See the License for the
     specific language governing permissions and limitations
     under the License.

Getting Started with WebOS

This guide describes how to set up your development environment for Cordova and run a sample application. Note that Cordova used to be called PhoneGap, so some of the sites still use the old PhoneGap name.

Video Tutorials:

Requirements

Windows, OS X, or Linux

Install SDK + Cordova

Download and install Virtual Box
Download and install WebOS SDK
Download and install cygwin SDK (Windows only). Make sure you select “make” as it is not included by default
Download the latest copy of Cordova and extract its contents. We will be working with the webOS directory.

Setup New Project

Open up terminal/cygwin and navigate to where you extracted your Cordova Download. Go into the webOS directory.

Hello World

In phonegap/webOS/framework/www, open up index.html with your favourite editor. After the body tag add <h1>Hello World</h1>

5A. Deploy to Simulator

Open up your Palm Emulator from your applications folder/start menu.
Type make in your terminal/cygwin while in the webOS directory.

5B. Deploy to Device

Make sure your device is in Developer Mode and plug it in.
Type make in your terminal/cygwin while in the webOS directory.

Done!

You can also checkout more detailed version of this guide here.