From Fake Steve Jobs, who remains the absolute best resource for Apple information, and by far the funniest blog on the web:

The nice folks at Sugarcat Cakes sent along this photo of their latest cake creation. They call it the Jesus Cake. Feeds a whole party of hungry geeks, but alas, you can't remove the battery.
You know that you can't remove and replace the iPhone battery yourself, right? Just like the iPod, you have to send it to Apple, and pay $79 plus $6.95 for shipping for them to ship it yourself.
On top of wiping off the fingerprints, they throw in erasing everything stored in your phone for free. Classy.
You're probably a couple hundred charge cycles away from need to replace the batter, but seriously, back your stuff up before you do.