...is about to begin...
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So, we've got the Nexus 7:
Nexus (http://www.google.com/nexus/#/7)

The Nexus Q:
Nexus (http://www.google.com/nexus/#/q)

Jelly Bean:
Android 4.1 Jelly Bean review: a look at what's changed in Google's mobile OS -- Engadget (http://www.engadget.com/2012/06/28/android-4-1-jelly-bean-review-a-look-at-whats-changed-in-googl/)

Some more Google Glass stuff.

Google Chrome and Drive for iOS

Personally, I don't understand the appeal of the Nexus Q at a $300 price point. I'd rather see the functionality packaged into the Nexus 7/Jelly Bean and offer a $50-$100 dock for the Nexus 7 that includes an audio amplifier and the same connections that the Nexus Q offers. You'd end up with way more capability for the same price. The Nexus Q should be offered for less than $100, and have access to all the same apps as the tablets to be competitive.

Since it is running Ice Cream Sandwich, I bet somebody will add those capabilities to other devices...

Here's some speculation about the price...
Made in the USA: Google's Nexus Q is symbolic and significant | The Verge (http://www.theverge.com/2012/6/27/3121979/made-in-the-usa-google-nexus-q-streamer-american)

So, want "Made in the USA"? It'll cost you...a LOT!