Google is up to something fishy, according to most recent rumors. They seem to be very much looking into operating systems, as it worked out great for them in the mobile world with the Android.
Net Applications seems to have found a great deal of unusual traffic coming from Google employees. About one third of traffic coming from Google has its OS information concealed, which almost never happens. Still, the rest of the data remains visible.
The only explanation for the situation is that Google has something to hide. If that is how things stand, we might just see an adapted Android version running on our PCs sometime in the future.