There is a very complete review at Laptop Magazine
. It is running Windows XP (not the tablet edition), and the bundled software includes FoxitReader, FBReader, MyScript Stylus 3.0, EverNote, ArtRage 2, and ArcSoft Webcam Companion. The handle is removable, which will probably help with adult buyers.
This looks like a very nice device, and this class of machine is a serious alternative to the iRex DR 1000. They are much heavier and have slightly shorter battery life, but on the other hand they are complete netbook class systems and significantly cheaper.