Update: Model number now confirmed as SA1f00V and SA1F00W. An image is available but is that an active digitiser pen though?
Snave is reporting in the forums that the rumoured touchscreen Kohjinsha is to be released soon as the SA18.
Information about the Kohjinsha is begining to leak out (see http://mykohjinsha.blogspot.com/). If the information is correct it will be called the SA18, and will be available in 2 versions, one with Japanese keyboard and OS, and one with US keyboard and OS. I will post more information on the new models as soon as they are announced.
With the ASUS T83 also going through the rumourmill, it could have some competition!