The screen that just keeps on going meets the OS that refuses to fit on a single display. Yes, Microsoft's Windows Phone 7, like Windows Mobile 6.5 and Android before it, is getting treated with a 4.3-inch display from HTC for its launch party. The aptly titled HD7 is, by virtue of Microsoft's stringent hardware requirements, mostly just a stretched-out version of its WP7 contemporaries: it offers the standard 800 x 480 res, 1GHz Qualcomm Snapd