I read about the Feb CTP cursor support over in the WPF/E Google group and had to figure it out. I found this post about the Cursor support in WPF and it turns out you can now use the same syntax in WPF/E.
How to set the mouse cursor in one easy step: set the Cursor property. For example, this markup:
<Button Cursor="Help">Help</Button>
… sets the cursor to be the “Help” cursor, when the mouse is over the button.
Here is a quick sample that shows off setting the cursor to "None".
Cross-posted from blogs.sqlxml.org