Surprisingly, one of the biggest complaints about the iPad was its lack of a camera. But the iPad Cam-Case attachment can change all of that in a snap.
Literally, just snap the attachment onto your iPad and bang, you are taking pictures on the fly. Or even better, you can video conference a la iPhone 4. Although the lack of a camera on the iPad never bothered me, I still think the iPad Cam-Case is a pretty cool idea.