Amazon have opened the pre-order for this device.
You can buy the tablet alone for £379.99, or with the keyboard for £429.99.
The tablet runs Android 3.0 (Honeycomb), has 1GHz dual core processor, WIFI only, 1GB RAM, 10.1" capacitive screen. The most impressive thing about this device though is that the keyboard has it's own battery and when used with the tablet extends the battery life from 9 hours to 16 hours.
I wouldn't be put off by the device only having 16GB of storage either as it can handle full size SD cards and USB memory sticks / drives.