Bill Ray wrote an article, and I hate it already
Speaking as someone who, before my current Android, owned a Windows Smartphone and then Windows Mobile 5, 6 & 6.1, I can't help but feel Bill missed the point with his very first paragraph.
Part of the reason that Windows Mobile's UI sucked quite so badly was that it *had* morphed from a computer into a phone. You can still see the historical links to PocketPCs and iPaqs from the 1990s as recently as WM6.5. But so what? Notwithstanding the state of the UI, most people don't want or expect the same level of technology in their portable devices as they do on the desktop. Bill seems like he does - and once-upon-a-time I did too - but it's a minority view.
Arguably it took the iPhone to shake the world into recognising this fact, and Android to take it to the next level. Perhaps Bill is simply arguing that Microsoft, having seen two popular, solid platforms go before it (sorry Symbian!), doesn't seem to have moved it on to the third phase and made something which truly combines a decent UI with genuinely portable computing?
That would be fair enough, but given how long MS have struggled with a technically decent but clunky platform you might forgive them for concentrating on producing something people might actually want to buy - and just as importantly use - before dealing with the funky stuff later. Let's hope they do.