I often hear the chirp of the Nextel/Sprint and other walkie-talkie cell services around the office. It's almost like a status symbol to say ..."I have this cool phone with this cool technology."
I think it should not be a status symbol. Think of it...someone else who has the ability to chirp into your phone and say whatever they please on a speaker phone at any time owns you. (for my geekier readers I am saying you are pwned)
I could never allow especially a best friend to have push button access to my personal audio earshot without a filter.