Google was nice enough to host a large Ubuntu conference a couple of months ago, and given that they seem to love Wine just as much, I'm sure they'd be willing to lend us some space for Wineconf.
More importantly, though, is that we'd get to shmooze with some Google folks, convince them to fund more Wine development (eg Summer of Code), and even present a new Wine/Google product in a pretty flashy fashion.
Thanks, Scott Ritchie