Definately, congratulations.
Pligg is a great little system, I can see it going in a number of directions. I got my pligg up and running within an hour. I can see a number of ways to improve it and will do a full analysis after I have lived with the system.
Will Pligg and co destroy Digg, maybe not. I think Digg will destroy Digg and I do think it will be destroyed, but that's for a later post.
BTW I found Pligg through SEOmoz
One thing I have noticed is a number of Pliggs on the same sector,
SEO for example. I'm not sure the market can sustain a Pligg without a ready to go user base or diferentiating themselves in someway.
I'm thinking of startin a Pligg on Krispy Kreme Donuts.