From the DBW article:
Can tablets help children learn skills like penmanship? Can interactive apps foster appreciation for the sounds of language? Kumon Publishing North America is exploring these questions by introducing two digital apps for kids – Uppercase ABC’s:Learn To Trace Letters and Pittsun-Tsun: The Sounds of a Rainy Day.
ABC’s is a digital workbook that teaches kids to write the alphabet by having children use a stylus on a tablet to practice forming letters. Pittsun lets young children interactively experience early reading skills and onomatopeia.