This looks like the VGN-UX1XN that appeared in a UK magazine the other day.
The 32GB SSD Vaio UX Premium Micro PC runs with Vista operating system on a 1.3GHz Intel Core Solo U1500 processor. It has the 4.5-inch, 1024 x 600 pixel display, 1GB of RAM, a 32GB solid state disk, a Bluetooth 2.0, 802.11g, USB 2.0, Firewire, and Memory Stick Duo memory card slots.
Via Gizmodo.
Technorati tags: umpc, vista, sony, vaio, ux premium
Keynote video still there:
http://www.microsoft.com/events/executives/billgates.mspx
2 min clip about new computers here:
http://www.youtube.com/watch?v=0uakveXTh40