I found this thread while looking for the average skill level. I came across a bunch of people accusing a guy of cheating for getting an "impossible score" of like 1200 or something on the third round. I've played this game for a week, and have scored over 2200 in a single round and over 4000 in a game. So I wouldn't be so quick to judge. Also, I'm sure the best guys that play score 6000+ consistently. I know there are plenty of people better than me, so it's not like I think I'm all that.

[Edit: Ok. Since I wrote this message 3 days ago, I've scored over 5,000 in a game, and over 3,700 in a single round. So the scores of ~2,000 are very easy to get without cheating.]