As reported earlier, Germany has a valid Apple iPad alternative coming with the Linux based WePad.
Below you can watch a video that demonstrates the WePad OS. In contrast to the iPhone OS, the WePad already supports full multitasking. The video shows some interesting aspects of the WebPad OS touch screen interface.
I have though the impression that it is not as fluid and consistent as the iPhone OS on the Apple iPad. The homescreen of the WebPad looks though to be very powerful.
More WePad details.