I'm please to say my hobby project, a Windows Phone app I call "Jimmy Sudoku" is now available both for free or for purchase.
The two SKUs in the Windows Phone App Marketplace are identical.
The free version is available in almost all markets around the world (including the US).
The paid version is only available in the US and 100% of the proceeds continue to support #NoKidHungry.
Link to Free SKU
Link to #NoKidHungry SKU
Please... Enjoy! :)