The good: The Nokia Lumia 900's eye-popping unibody design sets a new direction for smartphone style. Its LTE speeds, vivid 4.3-inch screen, and 8-megapixel camera are high points. The bad: Problems with call quality and minor design flaws like some gaps in the construction and weirdly placed buttons get in the way. The designer camera optics are good, but they don't live up to the hype. The phone shoots 720p video rather than 1080p video. The bottom line: The Nokia Lumia 900's unique design and high-end features make Windows Phone look fantastic, and the $99 price is extremely fair. Despite some flaws, this is my favorite Windows Phone yet. Photo gallery: Nokia Lumia 900 Nokia sorely needs a "hero" smartphone with the looks, the speeds, the specs, and a price that will hush the doubters. With the Lumia 900, Nokia proves that it has the chops to compete. We thought so at CES, where we awarded it best new smartphone, and I think so now. But is the Lumia 900 a br...