I think my experience exemplifies this: I bought a WP7 two days ago. WP7 phones are very cheap now. Sure, there are cheap Android phones too, but those run very old versions of Android that I can't upgrade. That doesn't exactly sound like 'open' to me, I'd immediately buy an outdated phone. And laying out hundreds of euros for a phone is beyond reason in my opinion. Mine cost 150€, the LG E900. I think Windows will grow in marketshare simply because it's the best, high quality option for its price.