Love the plugin, LOVE the active development. I am EAGERLY awaiting the gravity-forms integration. I was in the middle of doing it myself when i saw your post about it. This will be pivotal for my current project.
I do have a few issues to resolve before I can commit to the premium version. I am dealing with a client who needs a "store locator" type functionality, which I am easily able to create using a custom post type and your plugin. I use your plugin to allow visitors to find the locations nearest to them. However, for security reasons, they cannot be allowed to see the addresses online, only contact info which is on the custom post type. I "could" hide the address with CSS, but I would rather have the wppl_results shortcode modified to not print them at all. And ideas on this?