I'm intensely relaxed about Opera support. I suspect that the 0.5% people using Opera know what they're doing, and can deal with the odd incompatibility by firing up something else. Opera compatibility is a nice-to-have, but that's it.
IE6/7/8 are still a very much bigger problem, because there are still people that for whatever reason (e.g. corporate IT policy, total lack of knowledge) can't upgrade and can't use anything else.
IE6/7/8 are still a very much bigger problem, because there are still people that for whatever reason (e.g. corporate IT policy, total lack of knowledge) can't upgrade and can't use anything else.