You can't really design an iMac killer up front. You can position something to compete with the iMac, and then, after you've sold a very large number of them and your competitor (Apple in this case) has been unable to match you stride-for-stride you might conclude that it was - in the end - an iMac killer.<p>But given MS's track record to date with 'killer' projects (Zune, anybody?, Windows phone, perhaps?) I'd not hold my breath until they have accomplished the stated goal.