Hard to believe, but March is here, and with this lambing-lion of a month comes Engadget's first-ever Expand conference in San Francisco. It also marks the impending culmination of our first-ever Insert Coin: New Challengers competition. Late last year, we asked makers to submit their projects for a chance to win $25,000 in prizes. We whittled that list down to 10 semifinalists and asked you to help up get it down to a final five, which will go up in front of our all-star panel of judges
