As a test to see how easy it would be to get the isometric engine running on WP7 I created a new WP7 xna game project.
Using the project I converted the isometric engine into a Wp7 game libary project and added a reference.
I then need a method to gather the users input so they can control the game.
This was easier than I suspected, all I had to do is detect where the user is clicking on the screen, check if it falls in the bounds of a button and that the last state was released.