I've noticed when using the HDMI output that the screen on the device itself blacks out.
This can make some things quite difficult to navigate and am wondering if there is something I am missing to keep the devices screen from doing this while using this feature.
This chipset doesn't support the dual display as has been mentioned. I was too disappointed when getting the tablet. Currently as a workaround, I have found that if you plug in a mouse, a red cursor will show up on the screen. This helps for selecting things, but of course leaves no possibility for apps with multitouch.. unless maybe a multitouch trackpad?
The left click works as a tap, holding it is the same as a long press. The right click works to open context menus. I have been using this to play angry birds, but helps when watching on netflix, or using inside a browser.