Mine just arrived this morning.
OS: Android 4.0
CPU: Cortex A8 1.5Ghz
Internal Storage: 4GB
Network: Wireless 802.11 b/g/n
IO/Ports: USB2.0 OTG/T-Flash/USB2.0 Host
HDMI: 1080p and 2160p
Power Input: 5V/2A
Does not have Bluetooth built in, but easily solved with a USB hub.
$74 Android 4.0 MK802 Mini PC unboxing
$74 MK802 Android 4.0 Mini PC app demonstrations
MK802 Android 4.0 Mini PC - Video 7 - Usb Video Game Controllers
MK802 $74 Mini PC running Ubuntu 10.04 Linux
MK802 Android 4.0 Mini PC - Video 5 - Using an Ethernet / LAN adaptor
We have a bar and 40" Sony in the office and the guys had me hook it up straight away to test it out.
The overall view from all of us is a simple "wow".
The power plug is unfortunately American so I have to wait until I get home to test properly (have American adapters at home). We tried to power the device off the TV's USB but it was not sufficient. The device needs 2A and USB cannot provide that so we had screen flicker.
Initially the flicker was every now and again, but as soon as we hooked up the wifi it got bad (higher power drain).
Android Market is preloaded on the device. It upgraded to Play Store and I had access to all my apps. The first I wanted to install was Plex but flicker got too bad by the time we got to this point. Need to be patient and wait until I get home to test properly.
I can promise you right now that there will be another order going in for more of these devices. So tiny. So feature rich. This is my phone on the big screen.
I will update this thread with more information as I test and fiddle around. Not been this excited about a gadget in a long time