Periodic tweets using tweeter library for Arduino

#include <SPI.h>
#include <Ethernet.h>
#include <Twitter.h>

byte mac[] = {   0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; // create MAC address for ethernet shield
// Your Token to Tweet (get it from http://arduino-tweet.appspot.com/)
Twitter twitter("14205607-aX34ti1eLI44r3dZpo2GtsI8YXf24M0sZSV7Taaaa");

int analogZero;
char tweetText[140];

void setup()
{
  delay(5000);
  Ethernet.begin(mac);
  Serial.begin(9600);
}

void tweet(char msg[])
{
  Serial.println("connecting ...");
  if (twitter.post(msg))
  {
    // Specify &Serial to output received response to Serial.
    // If no output is required, you can just omit the argument, e.g.
    // int status = twitter.wait();
    int status = twitter.wait(&Serial);
    if (status == 200)
    {
      Serial.println("OK.");
    }
    else
    {
      Serial.print("failed : code ");
      Serial.println(status);
    }
  }
  else
  {
    Serial.println("connection failed.");
  }
}

void loop()
{
  // get some data from A0.
  analogZero=analogRead(0);

  // assemble message to send. This inserts the value of "analogZero" into the variable "tweetText" at point %d
  sprintf(tweetText, "Prueba Arduino, Pin Analog 0 tiene el valor: %d. ", analogZero); //

  delay(1000);
  tweet(tweetText);
  do{ }
  while(1>0); // endless loop
  delay(61000)
}