I think it can be valuable tool not only for business man or woman but also for musicians.
I recently got one and wonder what other interesting usage people can come up with.
Beside taking notes you can also sing to it some musical ideas etc right?
You could put one with voice activating feature under your bed to find out if your wife is cheating on you
when you're gone on biz trip. 

My phone has a voice recorder in it.

Does that make me a bad person?

bapu


My phone has a voice recorder in it.

Does that make me a bad person?

Depends if you sing in it? or not?
 
 
 
Mooch?

I have used one in the past to whistle melodies into when I've been out on the street. However when I played them back later I wondered what in the hell I was thinking. 

Mesh

bapu


My phone has a voice recorder in it.

Does that make me a bad person?

Depends if you sing in it? or not?
 
 
 
Mooch?

Mooch would say it's downright impossible for me to sing into my phone.

bapu


My phone has a voice recorder in it.

yeah, most of phones have now this feature but it's usually really inconvenient, hidden deep in menus. plus recording time is limited 
not to mention quality of mike etc so I think dedicated voice recorders are way better. 

Most of the Mikes I know are of high quality. Now, my mic in my phone, that's a horse of another story.

Jacob Moon found a use for one; http://www.youtube.com/watch?v=W4vd9OVLO7Q

I have a Zoom H1 that I use to record rehearsals.

I got an olympus .... setting here on my desk...... no batteries in it. 

I'm with sharke..... when I listen back to the ideas... What the heck was I thinking? 

that's why it's on the desk with no batteries.