On Windows Phone there's a marketplace review task.
Is there any way to implement the equivalent functionality in WinRT apps?
I realize that there's the "rate and review" button in the Charms bar, however, this is not what I need, as I want to integrate a button inside the app to launch the review UI.
It may seem trivial, however, this is one of the most important requirements!
This is not a duplicate of is there an equivalent of wp7's marketplacereviewtask for windows 8 / winrt / metro style? because the questioner was happy with the Charms bar method.
thanks