How about a beer with your iPhone?
Now here is a gift for the guy who has everything. The Opena is basically a protective skin for the iPhone 4 with a bottle cap opener that slides out. That's about all there is to it.
All you have to do it click your iPhone into it, and you are in business. When you need to open a bottle, there is a metal slider in the back of the unit with a hole in it. Put your finger in the hole and slide upward. Out pops the opener.