Another interesting move from Google spotted here by Rob Diana http://regulargeek.com/2009/09/27/google-sites-goes-after-enterprise-collaboration/ and following on from my points about their desktop notification API as an internal comms engine: http://theparallaxview.com/2009/09/google-internal-comms/
As Dion Hinchcliffe tweeted they’ve got some way to go but a clearer picture of their longer term strategy is getting a lot less fuzzy. In the long run, Google are after the market space of SharePoint