With a 4.7-inch screen, the “Titan” announced today by HTC and Microsoft has the largest screen of any Windows Phone device yet, but seeing it in all its glory above made it difficult not to pine for just a few more inches to make this thing into a true tablet.

Of course, we’ll be seeing tablets that look a lot like this whenever Microsoft comes out with Windows 8 and its Windows Phone-style start screen, but devices like this show just how silly it’s becoming to draw a hard line between the tablet and smartphone markets.

But that’s not how Microsoft sees it, at least not for now.

“We view a tablet as a sort of PC,” explained Microsoft’s Andy Lees in July. “We want people to be able to do the sorts of things that they expect on a PC on a tablet, things like networking to be able to connect to networks, and utilize networking tools, to get USB drives and plot them into the tablet. To be able to do things like printing, all of the things using Office, using all of the things you would expect from a PC and provide a hybrid about how you can do that with the tablet, as well.”

Maybe that’s true for some people, but millions of iPad users would disagree. And if that Windows Phone device above were available with a 9-inch screen — minus the phone and at a reasonable price — I would buy it, (particularly based on my generally positive experience with Windows Phone so far). And I have a hunch a lot of other people would, too.

More details on the Titan and another new Windows Phone device, the HTC Radar, in this CNet hands on. Among other things, they have front-facing cameras, confirming reports that the Windows Phone 7.5 “Mango” update supports that functionality.

The new HTC phones are due out in October in Europe and Asia. No word yet on U.S. availability, pricing, or carriers.

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