I've always loved getting handmade Christmas cards. It's just so heartwarming to open one and listen to a holiday song on the built-in iPhone.
I really doubt that many of us will send or receive Christmas cards like this one, but if you really feel like a DIY project then don't forget to get an iPhone app called Bauble. Yeah, as if buying an iPhone isn't enough, you need to get a $.99 app to make the card. [Bauble App]