Awww, give 'em a break. They're busy shipping Tiger out to (most of) us, and defending themselves against frivolous lawsuits! 😀
When they first started doing Tuesday updates, I used to frequently get them on Wednesday or Thursday...I remember it took them some time to iron that out. Maybe they should just find a way to take the Tuesday out, and let it be a mythological component in the aura of iTMS, like Tuesday system upgrades are among us mac geeks. 🙂