If you intend to use Skype DO NOT buy a Nexus 10, otherwise it is great.
Skype works perfectly for me too. No problems at all.
If you intend to use Skype DO NOT buy a Nexus 10, otherwise it is great.
From my tests, I'm confident the mic is omnidirectional. Since it's not cardiod, which would be optimal if the person speaking is close to the mic, you may need to be conscientious about background noise.