APP-ETIZING DATA: $4.19: that's how much American parents of 6-8 year olds paid for their last app, according to KidsIndustries, a 12-year old British research firm specializing in unraveling family preferences and habits. The firm recently surveyed 2,000 parents of kids ages 3-14 years old in the UK and US and found they had downloaded an average of 11.3 apps over the past three months. Free summary of the data is here.