Conexión RESTFUL con android y JSON

{"menu": {
   "id": "file",
   "value": "File",
   "popup": {
     "menuitem": [
       {"value": "New", "onclick": "CreateNewDoc()"},
       {"value": "Open", "onclick": "OpenDoc()"},
       {"value": "Close", "onclick": "CloseDoc()"}
     ]
   }
 }
}

<?php

$data1 = array('nombre'=>'Benito','apellido'=>'Camelo');
$data2 = array('nombre'=>'Rosa Mela','apellido'=>'Cabeza');
$data3 = array('nombre'=>'Yola','apellido'=>'Prieto');

$data = array( $data1, $data2, $data3 );

$datares = array( 'status'=>200, 'Registros'=>$data );

print (json_encode( $datares ) );

?>

{
  "status": 200,
  "Registros": [
    {
      "nombre": "Benito",
      "apellido": "Camelo"
    },
    {
      "nombre": "Rosa Mela",
      "apellido": "Cabeza"
    },
    {
      "nombre": "Yola",
      "apellido": "Prieto"
    }
  ]
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/btnRF"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/strButton" />

    <EditText
        android:id="@+id/txtRespuesta"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"        
        android:ems="10"
        android:inputType="textMultiLine" >

        <requestFocus />
    </EditText>  

</LinearLayout>

<string name="strButton">Test</string>

<uses-permission android:name="android.permission.INTERNET"/>

package com.bolivia.restfulbasic;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.EditText;

public class MyRestFul extends AsyncTask<Void,Void,String>{

 //ruta del servidor
 private final String HTTP_RESTFUL="http://TU_SERVIDOR/restful/datos.php";
 //
 private ProgressDialog progressDialog;
 private Context context; 
 private EditText editText;

 /**Constructor de clase */
 public MyRestFul(EditText editText, Context context) {
        this.context = context;
        this.editText = editText;
    }

 /**
 * Metodo que se conecta al RESTFUL para obtener un resultado
 * */
 public String getRestFul()
 {
  HttpClient httpclient = new DefaultHttpClient();
  HttpPost httppost = new HttpPost(HTTP_RESTFUL);  
  String strResultado="NaN";
  try {   
   //ejecuta
   HttpResponse response = httpclient.execute(httppost); 
   //Obtiene la respuesta del servidor
   String jsonResult = inputStreamToString(response.getEntity().getContent()).toString();
   JSONObject object = new JSONObject(jsonResult);
   //obtiene el status
   String status = object.getString("status");
   //200 -> todo esta bien
   if( status.equals("200") )
   {  
    strResultado="";
    //extrae los registros
    JSONArray array = new JSONArray(object.getString("Registros"));
    for (int i = 0; i < array.length(); i++) 
    {
     //recorre cada registro y concatena el resultado
        JSONObject row = array.getJSONObject(i);
        String nombre = row.getString("nombre");
        String apellido = row.getString("apellido");
        strResultado += nombre + " " + apellido + "\n";
    } 
    return strResultado;
   }   
  } catch (ClientProtocolException e) {
   strResultado = e.getMessage();   
   e.printStackTrace();   
  } catch (IOException e) {
   strResultado = e.getMessage();
   e.printStackTrace();   
  } catch (JSONException e) {
   strResultado = e.getMessage();
   e.printStackTrace();   
  }
  return strResultado;
 }

 /**
 * Transforma el InputStream en un String
 * @return StringBuilder
 * */
 private StringBuilder inputStreamToString(InputStream is)
 {  
  String line = "";
  StringBuilder stringBuilder = new StringBuilder();
  BufferedReader rd = new BufferedReader( new InputStreamReader(is) );  
  try
  {
   while( (line = rd.readLine()) != null )
   {
    stringBuilder.append(line);
   }
  }
  catch( IOException e)
  {
   e.printStackTrace(); 
  }

  return stringBuilder;
 }

 /**
 * Realiza la tarea en segundo plano
 * */
 @Override
 protected String doInBackground(Void... arg0) {
  String resul = getRestFul();
  progressDialog.dismiss();  
  return resul;
 }

 /**
 * Antes de comenzar la tarea muestra el progressDialog
 * */
  @Override
  protected void onPreExecute() {
       super.onPreExecute();         
       progressDialog = ProgressDialog.show(
           context, "Por favor espere", "Procesando...");
  }

  /**
 * Cuando se termina de ejecutar doInBackground se actualiza la interfaz
 * **/
  @Override
  protected void onPostExecute(String resul) {        
      editText.setText(resul);
  }

}//end:class

public class MainActivity extends Activity {

 Button button;
 EditText txt;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  button = (Button) findViewById( R.id.btnRF );
  txt = (EditText) findViewById( R.id.txtRespuesta );

  button.setOnClickListener( new View.OnClickListener() {
      @Override
      public void onClick(View view) {
       new MyRestFul(txt, MainActivity.this).execute();
      }      
  });
 }