Locify as a open source
Locify is available under GNU GPL license. But if you do not want to to release your work based on Locify under this license (otherwise mandatory) you can obtain commercial license. The cost of this license depends on what functionality you plan to use, because Locify uses some libraries licensed under dual license, too.
You find code and more info about open source on http://code.google.com/p/locify/. We will be really happy if you contribute in the project.
If you are interested in commercial license and/or custom tweaking of Locify, feel free to contact David Cizek.
More information about prices and license will be added here, soon.