Volt

The line between firmware and software updates has long blurred. One man's fix is another man's feature. For example, one could argue that lack of portrait mode in the browser was a bug, but equally Nokia could argue that it is a missing feature, which they never promised would be there. However, yes, security updates and obvious bug fixes should be free, while things like Meego support, Ovi Maps etc. can be charged for updates.

Mandrake (who then became Mandriva and then became bankrupt...bad example I know but the one I have had some experience with) had an interesting model where the paying customers could vote for which new features should be added in the next release (similar to brainstorm), which then allowed the company to prioritise the resource accordingly.