Google has a pretty good description of how icons have to be designed for certain usage. At the time of writing this book, the information is available at: http://developer.android.com/guide/practices/ui_guidelines/icon_design.html.

There, under Providing Density-Specific Icon Sets, is described which sizes they should have. Basically, you need three icons, 36 x 36, 48 x 48, and 72 x 72 pixels, in dimension. So, create these three icons as regular PNG files. Next, you have to build your Android project. Inside the Build/Android folder, you will find another res folder. There you find three drawable-... folders. In that folder you copy your icons depending on if it is for the lower (ldpi), medium (mdpi), or high (hdpi) resolution. The next time you build and transfer your project to the device, you will find that it now has the icons that you have copied into the folder structure.

To change the name of the app, locate the file yourProjectFolder/Build/android/CONFIG.TXT.

There, you have two fields that have to be set—APP_LABEL for the name and APP_PACKAGE to make it unique. Change both according to the description. The next time you build and transfer your project to the device, the app will have a new name.

We will talk about signing an application correctly for the Android market, in Chapter 10. However, this link will give you a little information on how to do it —http://www.monkeycoder.co.nz/Community/post.php?topic=1014&post=8800.