I have not looked into the new CTP yet, I have several sl projects in production now.  Each of the apps leverage IG controls.  The commanding framework is great but very limited.  Can I expect an updated commanding framework that may allow for more advanced manipulation of the tile pane.  For instance I am currently creating a "close" toggle button in the datatemplate for the tile style and I must define a click handler in code behind to actually close the tile.   It would be nice if such functionality were included in the framework.

Thanks in advance for any info.