After adding iexplore.exe.config, and enabling ink, I am able to post using ink via the whiteboard. I found another posting that mentioned some text must be included in the post in order for the posting of ink to succeed.
When ink is posted to the Community Server based blog or wiki, it is transformed into a GIF image. Although this makes the posting easily visible to non-Tablet users, it does make the system somewhat less useful as a collaboration tool between Tablet users.
Microsoft and others have posted some information about making ink persistant in web applications. Examples can be found at:
http://msdn.microsoft.com/mobility/tabletpc/articles/techart/default.aspx?pull=/library/en-us/dntablet/html/tbconInkWebPers.asp and
http://www.code-magazine.com/Article.aspx?quickid=0512062
Persistance would enable Tablet users to collaborate more efficiently. One example would be teaching math. Suppose the following was posted by an instructor:
Plot the following
With persistant ink, a tablet user should be able to take the posted ink and paste it into MathJournal from xThink and generate the plot. The student could then make changes to see how the plot was affected.
Example plot from MathJournal:
Unfortunately another limitation in the Community Server software today is the inability to paste from an ink enabled application such as MathJournal or Microsoft's Notepad into the whiteboard.