THE PRICE ON THE PAGE IS NOT WHAT WILL APPEAR IN THE CART! DON'T PANIC! PRICE IN CART IS USD165.
This is their latest tablet. It wasn't available at buyitincoins.com when the coupon was initially posted but it is now. There are slightly lower prices (by a buck or two) for what appear to be this tablet on aliexpress but the specs are dodgy (wrong battery capacity for eg) so I'm not counting them as if you buy and you don't get what you expect you can't even refer to the ad to have a solid whinge.
The specs here appear right. This tablet is dual core 1.5Ghz, 1280x800 IPS capacitive touchscreen, 5Mpx back cam, 2Mpx front cam, bluetooth, wifi, 5000mah battery, 1GB RAM and 16GB storage. 3G is supported via dongle.
Several sites indicate Google Play support is included (the original Chinese site seems to hint at it but since all the Chinese is an image and not text online translation utils fail).
About the only thing it's really missing is in-built 3G support and GPS.
The tablet is listed as USD165 (once you get it in the cart at least) but the coupon will drop that by USD15 giving USD150.
Their website is a little rickety. You'll get a 404 if you delete something from your cart (though it will delete) as well as if you try to order without being logged in first. My suggestion is either login first or make an account first and then make your purchase. Less pain that way.
Also, this is a pre-release sale. I do not believe that it'll ship until 2012-8-29 2300 (roughly a week from now).
dealman, master of copy and paste, has provided more specs.
Odd, the page you've linked to lists it at $223.67 for a single unit but it shows up in the cart at $164.99, coupon drops it to $149.99.