The short answer is “yes, but not where the hype is.”
So the episode of CSI that featured a crossover to Second Life aired last night. Near as I can tell, the impact on the virtual population of SL was not huge and perhaps disappointing, but the new viewer made by the Electric Sheep guys is getting positive reviews. There’s a good roundup of links at Clickable Culture.
(Particularly priceless is the way in which sex webcams co-opted “csi” as a search term in order to drive in-world traffic. Not exactly the sort of mainstream that was probably intended).
It’s been interesting seeing the discussion surrounding whether or not the industry is actually heading in a mainstream direction. And I think the answer is that there’s definitely a bit of a hype bubble around specifically the social virtual worlds side of things.