Do not panic, there is a global bug with Google Webmaster Tools where Google is reporting that your site has zero pages indexed. This is currently a confirmed bug impacting all sites in Google Webmaster Tools. Google posted this in the known issues area saying:

So don’t worry – Google will fix it and you do not need to do anything.

There are literally dozens and dozens of threads with complaints. Here are just a few of them.

Forum discussion at WebmasterWorld, Google Webmaster He Help and so many more.

Update: At about 1pm (EST), I checked back to see if this has been resolved and I am seeing indexed counts at normal levels now.