Although the linked article ignores certain MS OS's, like Win ME (for good reason), it does accurately convey the message that MS often does fairly innovative things that run against conventional wisdom and, in most cases, this has worked out rather well for them. MS spends way more on research than Apple and occasionally good things make it into MS products.

Even with that in mind, Metro is a pretty big gamble. They're trying to bring a unified experience across mobile and desktop devices when there are practically no mobile MS devices out there! It would be an ambitious idea if Windows phone (or tablet!) was well established and had a decent amount of market share but, as things stand, it's appears almost insane. MS is taking a huge risk with their core market to expand into markets that they're almost completely locked out of at present.

However, if you look at the trends in computing its absolutely true that more and more is being done on mobile devices, often at the expense of the desktop. The argument could be made that MS, as a company, would be in serious trouble if they just stuck to the desktop market. It very well might be "go big or go home" time for Microsoft, and they are clearly choosing to go big.

I say good luck to MS. I hope Metro lets them push into the mobile market without alienating their desktop core. It's better for consumers if there's more choice.