Twas the night before Mountain Lion, when all through the Net, Not a creature was stirring, not even a mouse.

The hard drives were backed up, stored offsite with care, In hopes that a new OS soon would be there.

The geeks were nestled all snug in their beds, While visions of Siracusa words danced in their heads.

Enjoy the new operating system gang. Before getting started, here are a few tips:

Backup. If you've got an extra hard drive, make a full clone of Lion and stick it in a drawer for a month or three.
If you are in the middle of a project, don't upgrade.
Read every word Siracusa writes. Merlin is right. He is The Cleric.
In the name of all that is holy, do not upgrade your significant other's computer for at least two weeks. Your sex life is on the line here.
Have fun.