Gadgetzone unveiled a new UMPC (although we are not sure if it has Tablet PC edition etc.) : Medion RIM 1000.

We don’t know much about it for now : 6.5-inch touchscreen, 802.11b/g WiFi, Bluetooth 2.0, onboard GPS, DVB-T tuner, webcam and as you can see sliding keyboard.
Here is a very short of it:
Steve has information about Medion:
Medion often sell through Aldi in Germany and the UK and usually aim at the lowest price possible by offering the device on a particular day and selling a few thousand (or tens of thousands) within a week. Quality is acceptable and they have a knack of getting the specifications just right.
We’ll see.