I would enjoy some more chat features like: copy/paste, clickable links, perhaps emoticons and/or fonts. It would be nice to open chat separate from the client and to be able to see the time that a message was sent, so that you don't reply to an old comment.
I never saw myself using chat ever, and yet I use it all the time in foldit. It clearly compliments gameplay in this type of gaming environment. Therefore making enhancements to chat might prove more valuable then one might expect.
Thank you for your consideration.