GrassGames' Hearts is also available for the iPad and for Android Tablets.
You can get the iPad app here.
You can get the Android tablet app here.
Alternatively, search for "grassgames" (one word) in your app store.
For comments, queries & technical support, go to the Forums.
For information about GrassGames' Hearts for Mac OS X and Windows go to the GrassGames' Hearts home page.