The elusive Droid Bionic is finally within weeks of release (it should drop September 8th for $299.99), but if you want to pretend you already have one for a moment or if your current boot animation is not a gorgeous fiery bionic eye (is such a thing even possible?), then download this official Droid Bionic boot animation and sound. It won't grow you an extra arm, but it will make you the coolest chap in town (not really).
Last night, I spotted a tweet from simms22 linking to a video of the Honeycomb boot animation on a CM7ed Nexus S. This morning I awoke to a tweet from him with a link to download it. Update: about an hour ago, simms notified me that the original animation is the work of XDA member zul8er, and tnpapadakos then released an updated (fixed) version.
I think this is the first time I've ever seen his pretend pervertedness actually pan out.