Loren has an excellent idea for messenger that I have to say I could really use. I have definitely embarrassed myself before by typing in wrong window and at the very least confused the heck out of the person I am talking to.
I would like to have more status choices than away or busy. Sometimes I find busy acts as too much of an invitation for people to message me. No idea why buts its true. In fact I would be perfectly content if I could make myself appear offline but still have the ability to message someone if I wanted to.