Other parental control monitoring solutions I have used in the past have allowed for the configuration of "keyword monitoring". As an example, a parent might have the following keywords set:
"sex,drugs,rock-n-roll"
If any of those, comma separated, are used a screenshot is captured and logged. The screenshot is viewable in the logs. This bleeds into a secondary request of having a keylogger (log) feature, as well. A keylogger would allow the parent to monitor what was sent using ANY application, whether Norton has gotten around to supporting it yet, or not.
An example, Kik. Your product doesn't monitor Kik chat. But, if a keylogger was implemented the parental log might contain such information as:
KEYLOGGER LOG
--------------------------
App (Kik): "Sure, do you want to meet me later? My parents are out of town."
App (okcupid): "I'm really 16. 35 is kind of old, but if you want some pictures that's ok!"
The ability to capture the screen when particular words are used is very important and would cover a lot of the gaps the product doesn't currently support.