I'm building a WordPress reservation system that works around a 'line' concept, something like [Mailbox](http://mailboxapp.com) or [Tempo](http://tempo.ai) did (slowly letting users in while displaying the user's place in line). Of course, I've got the basics coverd: a user can sign up on the site, saving a spot in line (along with username, email password), then check back for a status update.
For fun, I've added achievements, wherein the site admin can define badges for certain criteria. As a test, I've got a *Pitching a Tent* badge for anyone that was within the first 25 people in line, and a *Rip Van Winkle* badge for anyone in line for than a day.
Can you guys think of any additional features? Or can you dream up any other ridiculous functionality? (the achievements came from a friend via Twitter).
PS: If you want to check out the site, you can do so at http://letslineup.com