Register an account with the iTunes Store c and without a credit card [UPDATE 2012]
In the STORE section, select the iTunes Store ( located on the right side of iTunes )
Trying to download any free application in the Free Apps section by clicking on the Free button, (Important! The application should be FREE, from the Free Apps section)
In the pop-up window click the Create new account button
To continue the process of creating an account, click Continue
Read the legal information, put a "tick" and click Continue
Fill the form (I recommend using the box in the .com zone) and click Continue (Important: The password must contain at least eight characters, including the upper and lower case letters and numbers, and you can not use spaces and the same character three times in a row)
In the Payment Method, select None . Fill out the form and click Continue (Important !!! The address should be real, do not want to specify your own - specify any other, even found in Google)
All is ready!!!
We are waiting for the letter in the box indicated.
After confirmation, you can enter the iTunes Store using your new Apple ID and password that you created.
Have a nice work!!!