Never heard of Geeksphone before? We can't quite blame you, but it's getting a fair share of attention at Mobile World Congress. While the company has cranked out an Android handset or two over the past few years, it's now dipping a second hand into the Firefox OS pot. Of the two models unveiled at this week's show, the Peek is the higher-end: it boasts a 4.3-inch qHD display, 8MP rear camera and 2MP front-facing cam,
