png2xml JAR file will create 2 xml files for your icon pack... It generates a "drawable.xml" and a "icon_pack.xml" based on the png's you have in a folder...  simple to use, just download this and place it inside the same folder as your png's... then open a command prompt and cd to that directory... then run the command java -jar png2xml.jar and your files are generated and ready to copy/paste into your theme...