I wanted to develop some small apps for my android phone that I bought a month earlier. I thought the installation and writing apps would be difficult. I found the procedure easy by using eclipse plugins. The procedure to setup the android development environment is follows: 1. Install eclipse from the eclipse download page. 2. To publish app on the market. When i am set to publish the app on the market. It requires the following things. 1. Signature Certificate valid for minimum 50 years. 2. The name of the package should not start with com.android, com.java, com.market ... : So name your packages explicitly not containing keywords like android, market, google, example.. 3. You need to export the application from eclipse and then publish the app.