Both the 10.2-inch Lenovo IdeaPad S10 as well as the 8.9-inch Lenovo IdeaPad S9 have been spotted at Fall 2008 Intel Developer Forum.
UMPC Portal posted a gallery of photos, while Joanna Stern made a few videos showing off the front-facing speakers as well as the display (and boot-up).
She came away with a very favorable impression of the keyboard and scrolling touchpad:
Just like the S9, the keyboard on the S10 is extremely spacious and a match made in heaven for touch typists. I had no mistakes when typing in Web addresses and the keys felt solid. There was also no bend to the keyboard. Oddly, however, the page up and down button are placed on the top row of keys.
The touchpad is a bit small for a 10-inch system. However, navigating the desktop felt smooth and there is a dedicated scroll bar. The touchpad also supports multi-touch gestures. Zooming in on pictures and Web sites by pinching my fingers on the pad worked without a hiccup.
– LAPTOP Magazine – S10 Up close, Videos
– LAPTOP Magazine – S9 at IDF
– UMPC Portal – Gallery at IDF