What are the four button on the side of the Nexus 7 for?
The four-contact connector at the left hand side of the Nexus 7 is intended to support a forthcoming audio dock.
Will the connectors work for anything else. Like sending video?
To be honest, we really don't know. The Samsung Galaxy Nexus phone has a 3-pin connector like the Nexus 7's 4-pin, but really nothing of much use ever came from it. There are a couple of charging docks that have audio out ports but nothing aside from that. I'm afraid they're pretty useless at this point. I think Google wants this to be a standard design feature so you don't wear out the USB connector plugging and unplugging things, but it hasn't caught on very well.
Forthcoming like the one for the Toro Galaxy Nexus?
Since it's not messed up by Verizon it will probably be out fairly soon.
Aren't those connectors the ones that cases use to communicate with the phone to tell it to wake up when you open the case?
No, that's a magnetic sensor in the tablet and a magnet in the case
Hear ya there!
Already have a keyboard and case so not sure there's anything else of use for me.
Had they launched docks the same time as the tablet perhaps I'd think about it, but now is just too late.
There are already charge/sync docks for the N7 like this: Buy.com - Black Google Nexus 7 2-in-1 Cradle Desktop Sync N' Charge Charger W/ USB Wall Charger Adapter
But they use the USB port, so it's a moot issue as far as the pins on the side. You still have to "abuse" the usb port.
Looks like they have a dock for the Asus 7.
they are called pogo pins and are for use with a charging dock, not sure if they support multimedia or not.
Would you know anyway of streaming or capturing game play from the device?
The app called Skifta will stream video (DLNA) from your device to anything that'll receive it
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