Yeah, sorry, I know there isn't a "real" Google datacenter there (too late to "s/datacenter/presence/" on my original comment now). I don't technically have any of my own datacenters, but I'm present in a few, just like you guys have a "major" (to me) presence.
This stuff is designed to be able to go almost anywhere that's willing to host it under the standard contract. File a request, let the relevant team figure out if it's worth putting a rack in. Nothing bad can happen as a result of asking the question.
(Ah, "major datacenter" in Chicago. It's bad of me to be amused by this. We don't have anything we'd call a "datacenter" in Chicago, that's a small installation ;). The list is here: http://www.google.com/about/datacenters/inside/locations/)