In general we schedule about 2 chats a month, and our attendance numbers show about 50-60 people attend. We like the openness of chats - is there anything specific that you would like to hear or have discussed? We were thinking of other alternatives - such as release an interview or video with a team member on the feature and then schedule a chat after it. What would be helpful for you?
Another idea is that once Beta2 ships out, we have a chat where we discuss some of the newer features in the IDE...always cool to know what got added.