While we're still waiting for ASUS to officially unveil its long time coming Eee Keyboard, a separate Chinese company has took inspiration from the design and put together the Cross PC U510.
At first glace its quite similar and clearly the idea came from ASUS' design; it features a 5-inch touchscreen but doesn't have multi-monitor support, meaning if you plug in an external display the built-in touchscreen will not work. Apparently it also lacks a battery.
Specs wise, it runs an Atom 1.6GHz CPU with 2GB of RAM, includes a 250GB HDD drive as standard and uses NVIDIA's GeForce 9400 GPU to handle graphics intensive tasks thanks to the use of the ION chipset. It also includes wireless support (I would assume wireless N) and comes with Windows XP installed.
Converted pricing works out to about $570 U.S. Dollars. However, there's no word on whether or not it will become available internationally at this stage.