Well, I just called my local Best Buy here in Salt Lake, and the nice lady told me that they did not have a PS3 kiosk set up, and that she didn't know when they would get one. However, Kotaku, and some of the members in their comments say that some Best Buy stores do/may have one. They cite PS3 forums (presently down) as their source.

Yeah, at this point it's all a bunch of he said she said. If your Best Buy does/does not have a PS3 kiosk, why don't you save us all a trip and let us know in the comments.

[Source: Kotaku/PS3 Forums]