If you read our preview of Office 2013, you know we liked it. A lot. But if we had one reservation it's that Office still isn't that finger-friendly, even with the addition of a touch mode that widens the spacing between onscreen objects and flattens the menus so that you don't have to tap quite as much. As if in response to critics like us (and readers too!) Microsoft has published a lengthy blog post detailing the thinking that went into the design of Office's new touch-enabled features. Which is to say, it's a more detailed recap of how the company's engineer