I think it's a great idea and looks like it's well put together. You may have seen my criticism above about how to "login", this is more a criticism of FB, not fandalism (but change it, make it optional).

Also, fantastic homage to the Bee-Gee's on your Uke! Have you seen this? http://www.youtube.com/watch?v=0LrXlVPn0DI