http://blog.synchack.com/2012/03/sdorz.html

gistfile1.java

String getPseudoStoragePath(){
    String storage_path;
    if(Build.MODEL.equals("Xoom")){
        // XOOM専用ｗ
        storage_path = System.getenv("SECONDARY_STORAGE");
    }else{
        storage_path = System.getenv("EXTERNAL_STORAGE");
    }
    return storage_path;
}