By now you've probably read our Desire HD review and you've seen how HTC's latest Android flagship stacks up against its Windows Phone 7 sibling, the HD7. But how does it fare against the original Android giant, Sprint's EVO 4G? The devices share common displays (4.3-inch WVGA) and cameras (8 megapixel with dual LED flash) -- but they use different radios (HSPA+ versus CDMA / WiMAX) and processors (fir