15-year-old Kate Moore won the LG U.S. National Texting Championship.




For the Des Moines, Iowa, teenager, her 14,000 texts-per-month habit reaped its own rewards, landing her the competition prize of $50,000 just eight months after she got her first cell phone.

Moore, with a speedy and accurate performance, beat out 20 other finalists from around the country over two days of challenges...