I like that line.
Vista is pretty and has some great features, but XP is much faster than Vista on my computer. I get the feeling that the "increased security" provided was for Microsoft's benefit more than the users.
My suggestion to MS: Focus on the consumer, not yourselves.
What drove this 20-year+ M$ user off the cliff was when M$ started selling its own anti-viral software, clunkily named Windows Live OneCare.
Think about that for a second.
"We make the finest operating system on Earth -- and for a small additional fee, we'll help you secure it."