Thank you, Symantec, for finally listening to the Forum feedback and fixing the wording of the Subscription Alert dialog box (NIS 2011), so that it clearly states what will happen if a user chooses to let their Subscription expire:
The previous wording, that read "If your subscription expires, you will not be protected against viruses and other security risks." created angst amongst those users who didn't realise that the product actually stopped working when their Subscription expired
Hopefully this Subscription Alert wording change was included in the recent patches sent to NIS 2010/N360 4 users...