As most are aware, you can select people that you want to put into your address book. When going into "My Home" it will actually display if these people are online or not (Friends Online). I would find as a useful tool if we could enter data to these people that is more personal such as actual names, attach PM's to, etc.
Maybe I'm think outside of the boards of what is capable and I should keep in a spreadsheet or word document on my computer. It obviously would be more useful here as "My Home" is my personal information.
Just a thought.