Every year, kids across the world mail out letters addressed to Santa head up to the North Pole, but how many kids receive a response from Santa? Could you imagine the look on a child’s face when he finds a postcard from Santa in the mailbox addressed to him. Well, there’s an app for that.

The Postcards From Santa app lets you send a real postcard addressed from Santa with your iPhone, iPad, iPod, or Android device. It’s simple; you pick out a Santa image, chose either a pre-written message or write your own, and enter the child’s name and mailing address,and, viola, a personalized postcard from Santa is on its way. It takes 3 to 5 days to reach U.S. and Canadian addresses and 5 to 14 days to reach the rest of the world. the cards are printed on high quality, thick paper and the images are high resolution with a glossy finish.

The app, which USAToday calls a “Top Tech Gift of 2010,” is available in the App Store and the Android Market for free or you can now also make one online with an app like simulator if you don’t have an Apple or Android device. Each postcard costs $1.99 including postage. So for only the price of that you can dig out of your couch cushions, you can help spread the excitement and spirit of Christmas by sending a personalized gift that a child will remember forever. Or you send one to an adult that’s still a kid at heart or swears to still believe in Santa.