Just saw this on Google+ just a moment ago right before Vic Gundotra took the stage at Google IO. The Nexus Q is a social streaming media player made for Google Play at home. When you have an Android phone or tablet on your home wifi network, you and your friends can send songs to the Nexus Q and modify the playlist as it’s playing. The Nexus Q will be available in 2-3 weeks and should be about $299.
Update: Some more features have come up during the keynote about the Nexus Q. The Nexus Q will also allow multiple devices to stream simultaneously. Similar to the Sonos, but all music streams directly from Google Play. The Nexus Q is available for pre-order now on the Google Play website.
Update 2: I thought the price for this sounded high. However, one possible reason that the price is high for this device is that it is Made in the USA.