I have just been watching this and think that Goggle may have just unveiled the future of collaboration software. Although in its infancy and with concerns around security and other elements this should make dispersed team communication much easier and may spell the end of share-point as a corporate tool in it current form. (I can see Microsoft moving in this direction as well).
With more and more project teams using Goggle Apps and after watching this i can see my resistance decreasing rapidly, It also opens up huge potential in integrated web communications Apps.
Have a look at the amazing user interface.
See more details at Tech Crunch