HTC announced the One smartphone this week, its new flagship device for the year. The One is a sequel to last year's well-liked smartphone and ratchets up the sex appeal with an all-aluminum design. Its feature set, which includes a luscious 5-inch HD display, zippy four-core Qualcomm Snapdragon processor, and shiny metallic colors, will let it compete well against similar phones from other manufacturers. HTC believes developers can plan a role in the One's success, too, with new APIs for the camera and BlinkFeed.