I agree with moving away from flash, not only is it unfriendly to other operating systems and mobile devices but it's also a security risk. Personally, my flash updates multiple times a week and if I don't update it, it goes into white-listing mode where I have to click yes to allow it when something on a page needs it. Which gets annoying.
Another thing, our current flash chat has a bug in it where anything you type after a less than symbol (<) doesn't appear. So it would be nice to have that fixed. I also don't like how our chat room looks and feels like an AOL chat room from 1995.
But I think the real concern here should be figuring out if we even want a chat system. The flash chat was only created to give staff a place to chat during war time and other special events that we no longer have and it's almost never used anymore. Personally, I think we should maybe just focus on 1 chat (the shoutbox) or clearly define the roles of the two.
@Don Von Alpha Dom