I read the article and it's scant on details about anything other than they're sucking bandwidth like crazy, taking the Internet down for the entire district, the IT guys were caught way off guard, and the kids and parents like them.
The article doesn't talk about how the iPads (it also mentions some ChromeBooks) have improved or otherwise affected grades, education, or anything. Anyone that has actually done have insight on that? Yes, I've Googled it, but it'd be nice to hear from someone in the field. I'm looking at this for a school I volunteer at too. Bandwidth is definitely an issue.