Should every child in America have an iPad? That’s what a rather provocative article over at Cult of Mac editorialized this weekend, to cries of both support and astonishment in the comments, Yahoo! News reports. The main gist of the argument is that the iPad is a better interactive learning tool than one of the main alternate activities that seems to get a free pass with many parents: watching television. Blogger Mike Elgan shares statistics about how much TV consumption trumps time spent in formal education (1,500 hours of TV annually vs. 900 hours in the classroom), and posits that the iPad is an excellent substitute…