This link is likely advertising, but they are on the verge of their 3.0 system software release which substantially adds to the functionality of the device. It

This link is likely advertising, but they are on the verge of their 3.0 system software release which substantially adds to the functionality of the device. It goes from page-based notetaking to an optional infinite size canvas, and text boxes are now allowed that can be edited on desktop. Users in the beta stream already have the update.