HP apparently sent some customers too many emails recently by accident. So they sent out an apology to them, via email. No doubt they will realize this additional email was an unwanted further intrusion and send out another email to apologize for it.
I also like how it includes a $10 off coupon on any item over $50. See? Played right, every customer service gaffe is a potential upsell opportunity.
BTW, the coupon code on this is SVP471394 and it expires 5/31/2011.
(Thanks to Stephen!)