Just took it for a ride with a coworker. One thing we noticed quickly is that we can't see each others highlights. Also when we were done, being able to see a

Just took it for a ride with a coworker. One thing we noticed quickly is that we can't see each others highlights. Also when we were done, being able to see a quick diff of the change would been nice (but perhaps it's in the 'save as' options?). We had to end our chat with 'so, what did we change again?'. another misc. suggestion: resizable chat window. Beside that, looks pretty solid. Congrats!