The third party community support site, GetSatisfaction, is fairly well known. It transpires that there's now an official (as in manned by Symbian employees) Symbian sub-community here, hopefully worth bookmarking should you 'need to ask that awkward question'.... Early days, of course, so the numbers are small but I'm sure it will grow.

From Symbian's blog:

"Expect Symbian enthusiasts, volunteers and employees alike to help you find solutions to problems you may be experiencing with your handsets in a friendly and courteous fashion. I for one would love to see those people out there who are keen to help our support community grow and prosper, so anyone keen to help us answer questions would be more than welcome to. If you feel you have extensive knowledge and passion for our platform or one of our devices and would like play a more active and official role in the site as it grows, so please feel free to send us a tweet to our @symbian account and we will be in touch."