Touch-ups to messaging system

I absolutely love having the PM feature. Thank you infinity for introducing that. However, if I may be so bold as to say, it could use a few small improvements. Right now your entire message history is all in one long scrolling page. Could the messages be automatically collapsed, and maybe just headed by the subject, correspondent, and maybe the date? Plus a little symbol for if there is a new message in that thread from the other person.

Thanks for listening to all my crap, you guys are the best. I think I'm fast becoming one of your most vocal (and annoying) users. :P