At the moment it’s a low priority on the features list. Given the nature of post an pages operating differently ie categories vs parent sibling relationships it should be its own plugin. Perhaps in the future I or someone will make it.
Another other option that isn’t glamorous but would allow you to use Post Tiles with pages would be to add a plugin like http://wordpress.org/extend/plugins/quick-pagepost-redirect-plugin/ which allows you to use posts as redirects. So you create a category for your posts called “pages” or something then create a post called “home” then type in the url to redirect home. Then use the Post Tiles’ short code to pull only the “pages” category.