Here is a video of a TabletKiosk i440D running openSuse 10.3 Linux.
I was surprised to see how well the on screen keyboard works and the presence of Xournal a replacement for Journal an application to takes notes in "Ink" that comes with TabletPC 2005 Edition OS. Even the screen rotation and the fingerprint reader work perfectly.
Are we going to see Linux as an option for this machine? That's the question I'm leaving in the air to TabletKiosk. I hope so, even when I'm happy with Microsoft OS, competition is what's needed to see improvements in any OS.