It's something they're testing and only available to staff right now if I understand correctly. There was a poll a week or so back asking what people thought of it.

Tom, off topic but can you tell me how you got that United aircraft image in you background of your posts? I would love to have a Delta one. Thanks

As Randy points out, we did this as an experiment. The intent of the poll was to give everyone the chance to have a say about giving everyone the opportunity to use it. There was so much negativity that we decided to just have it available to staff only.