I think if Norton have a local AV team on every country would be a nice one. So the team can analyze the new "local" virus that created by local citizen on that country.
For example in my country, Indonesia. The local virus have grown up so much drastically in the last few years. The local AV software of course take a great advantages for this situation, but not my NIS. Sometimes i found that NIS were left behind that local AV software on identifying the local virus. And thats a great embarassment for me. While i'm soo much that confident because i'm using NIS, later on i'm infected with that local virus. My NIS can't even identify it, while the FREE local AV software can clean it in a blink of an eye. What a shame.
Just my humble opinion.