Looks good!

Random thoughts:

-I know I've been docked for saying this before, but a facebook app that ties in with your site might be a good way to virally grow the user base.

-My first reaction to the site's name was a play on Cthulhu: you might want to capitalize on that and make a (dyslexic?) cthulhu be the site's mascot.

-An idea for crossword generation is to take the top stories on reddit and make crosswords be based on key words (and their clues) from the stories.

Yeah, my first thought was: Facebook app it! A good tie in might be to generate crosswords based on your friends' names, and make the clues be based on their interests, wall posts, or something like that. Hmm, actually this sounds interesting, give me a holler if you'd like a collaborator ;)

Overall looks great.

Sometimes single-clicking on a square made that square get the next letter typed, sometimes it didn't. Other than that it seemed smooth.

I don't think there's a reliable route past spam filters for any kind of web-site invite. You might give users some text to cut/paste into their own email to friends.

Thanks.

I really should have noted that you can just cut and paste the url of you game and send that to your friends if the emails don't get through.

"Sometimes single-clicking on a square made that square get the next letter typed, sometimes it didn't"

I've never seen this myself - what browser/os?

Thanks again.

I observed the bug on Firefox/XP. The only reliable way I could reproduce it was to move the mouse slightly so that the letter was briefly selected when I clicked. It might be a case of just moving quickly/selecting. I think it might sometimes happen apart from that, but it's possible that it's the same thing but with deselection happening quickly.

Thanks, that's great info.