Like the Optimus Maximus, the Xbox 360 is a gadget that's been around on Engadget almost as long as... well, the site itself. Remember that exciting live launch coverage we did back in 2005? Now that was good, clean fun. Anyhow, without further ado, we're happy to present part 2 of Engadget's birthday giveaway session: a mystery Xbox 360 package. We can't tell you what's in the box here, but we can tell you that it's totally awesome. The best part? We've got not one, but two separate prizes to give away! Don't miss out -- you'll kick yourself if you do.

All you've got to do is let us know what your favorite post from the last five years has been in the comments below.

Note: We've bolded the above statement for a reason. Do it.

The rules:

iPhone OS 3.0 beta 3 goes live