I found myself in exactly the same situation lately--I mean exactly the same one. My solution was this: the speaker phone feature on the Razr is good and the speaker itself is very loud. So I decided to conduct my interview via speaker phone and record it over the air with a Zoom H4 field recorder (that I had on loan). I'm thinking of buying a Zoom H2 for doing the same thing in the future.
It's easier than dealing with bluetooth. And, since I only want the recording so I can transcribe it to text, sound quality isn't much of an issue.
But I'm basically just looking at new phones now. I don't think the RAZR's really working out for me--the weird battery meter is driving me nuts, and the phone book is terrible.
It's easier than dealing with bluetooth. And, since I only want the recording so I can transcribe it to text, sound quality isn't much of an issue.