[Philip Lelyveld comment: I'm not sure this would work outside of a culture that is respectful of elders. Put another way, the US kid whose mom videos an 'enjoy your lunch and do well in school today' message for him will get laughed out of the lunch hall.]
Excerpt: In this system, each lunchbox has a small touchscreen PC, camera, microphone,and speaker built in. The content starts up automatically when the lunchbox isopened.
"I think people who make packed lunches feel all sorts of emotions which may not always be communicated to the people who eat the lunches. And conversely, someone eating a packed lunch might want to say, "This is delicious," or "Thank you for making it." But it's not easy to give that kind of feedback to the person who made the lunch. So we're suggesting this system, to support communication between people who eat packed lunches and people who make them."
Read the full story http://www.diginfo.tv/2011/03/14/11-0066-r-en.php#mce_temp_url#