I just discovered that you can enable integration of AX and communicator such that you can see a contact's status right from within AX. To me this was so cool I couldn't wait to check it out and share the goodness. You can see Communicator presence...

Recently, I've come across some good books and articles about usability. When I thought about it, I realized that usability is universal and its principles can be applied by many roles related to software - software developers, business analysts, testers...