Haha, I loved your tweet with #megasuccess...
We're happy with how the game is doing so far - it's up to about 100k players now all-told. Mainly though, I've just loved the reactions and comments I'm getting. People seem to really enjoy coming across a (fun!) science game. (And the puns certainly don't hurt.)
"This game is certainly not Bohr-ing!" -player on Kongregate sums it up nicely
Also great are the players that find some science that they think is incorrect. Let's me strike up a discussion about some nuanced topics.