Dropped my ipad2 and it got 2 nasty cracks on it. My girlfriend brought it to the apple store in NYC on fifth avenue (even though it was bought at walmart). She simply told them that it had cracked and acted politely, and they replaced it free of charge. The Best advice I'll give anyone who has cracked their screen and is here seeking some comfort or advice is that Apple is a company who prides itself on amazing products and Great customer service. Treat them really nicely, and don't lose your cool. They WILL reciprocate.