I've been having some great interactions with users over e-mail*, and I decided to experiment with hosting a discussion board for the app.
To join the board, you can log in with your existing account, but you may be asked to choose a new username.
You can use the boards to ask questions or make suggestions for the app. And there's also a place to share your creations if you like to!
* E-mail is, alas, not perfect and sometimes I'm unable to reply to messages because of technical issues. If you never heard back from me that's probably why.